Sunday, October 13, 2019

Christianity and the Beowulf Poet :: Epic of Beowulf Essays

Christianity and the Beowulf Poet In my initial study of Beowulf it seemed to me that the Christian references in it were overlaid onto the essentially pagan tale that makes up the bulk of the poem. So I innocently decided to investigate this incongruity as the topic of this paper. And so I found myself smack-dab in the middle of an argument that has evidently raged for the last one hundred years or so. I found sources that ran the gamut from the position that Beowulf was a quintessentially Germanic pagan work that had been corrupted by some revisionist monastic scribe (Mooreman 1967), to the assertion that the author intentionally created a Christian allegory along the lines of Book 1 of The Faerie Queen (McNamee 1960). I have chosen the middle ground in formulating my thesis, which after further study of the text and a wide range of criticism seems to make the most sense. The author of Beowulf is indeed the author of those Christian passages, but his intention is less to proselytize than to demonstrate tha t Christianity and his audience's Germanic heritage were not incompatible. We know that eighth century Anglo-Saxon poets relied upon their native Germanic traditions and techniques to shape even overtly Christian poetry (i.e. The Dream of the Rood) and so it was with the Beowulf poet. The tales of Beowulf were already ancient legend when the poet began his work (whenever that was; dating the poem seems to be another of those old controversies with dates ranging from the 7th to the 11th centuries). The author skillfully uses this material to construct an entertaining tale while at the same time attempting to reconcile the concepts of the pagan wyrd (fate) and dom (renown or worth) with the Christian concepts of grace and final judgement. So it is that we have a poem that is overwhelmingly a pagan story, suffused with the old Germanic warrior culture ethos, yet sprinkled with many loosely Christian comments and a few explicitly Christian passages. However, it should be noted that while we refer to these passages as Christian, no reference to Christ is t o be found within the poem. The first of the Christian passages occurs when we are introduced to Grendal: God had condemned them as kin of Cain. The Eternal Lord avenged the murder in which he slew Abel.

Saturday, October 12, 2019

Account of the Travels, Sufferings and Persecutions of Barbara Blaugdon

Account of the Travels, Sufferings and Persecutions of Barbara Blaugdone The title of Barbara Blaugdone’s memoir is An Account of the Travels, Sufferings and Persecutions of Barbara Blaugdone, with â€Å"travels† highlighted by its enormous size. Indeed, when reading the book the reader is perhaps most struck by Blaugdone’s excessive, nearly constant travel habits. It may even be argued that at its heart the book is a travel narrative and not a memoir or even a religious account. She traipses about the seas around the British Islea, not only in England but also venturing to Ireland to proselytize and preach to those yet untouched by the Quaker message. Travel was an important part of Quaker life. As a fledgling religious movement focused on the importance of introspective faith and a personal relationship with God, many Friends took it upon themselves to spread the word world-wide. Furthermore, as a group looked down upon and disliked by the rest of English society, Quakers were tempered to have a predisposition towards independence and adventure that serve...

Friday, October 11, 2019

Character Analysis a Christmas Carol Fezziwig Essay

Dickens uses Fezziwig to represent views and values, which were once a common way of life for people, to give to the poor and help others, yet these values, and ideals were slowly fading in the 19th Century economic change Shown to Scrooge by the Ghost of Christmas Past, was old happy and energetic Fezziwig, who he was once apprenticed to when he was young, who taught Scrooge to be sharp witted, cunning moneylender like himself. The Ghost of Christmas Past takes Scrooge back to his young adulthood, to relearn the valuable lessons, which Fezziwig taught about life, that wealth and greed, should never come before generosity and those close around you. Fezziwig, the avid businessman, had plenty of money, yet lent it generously, while not holding back in throwing large parties every Christmas for every single one of his workers and some of their close friends. Fezziwig views his workers as members of his family, contrasting with Scrooge who wants nothing to do with his own nephew, only son of his sister, let alone one of his workers like Bob Crachit. Fezziwig and his wife were excellent hosts, involving themselves in every dance despite their age, showing that they were a â€Å"top couple†¦ a good stiff piece of work cut out for them.† Fezziwig was described as being quite old, yet lively, wearing a large Welsh wig, while having the dexterity to still be fit as an old man, in comparison to Scrooge who’s described as sickly and stiff, showing how by associating yourself with others, it keeps your spirit alive and active, when you seclude yourself, you tend to stop caring about yourself and everyone and everything around you. Not only did Fezziwig invite everyone who worked for him to enjoy and to have a merry Christmas, at the end of the night, he even went to the effort to, â€Å"shaking hands with every person individually† showing how he cared and thought well of every single worker of his, while you hear young Scrooge and Dick â€Å"pouring out their hearts in praise of Fezziwig.† The ghost of Christmas past helps to trip Scrooge’s guilt, by quoting â€Å"a small matter†¦ to make these silly folks so full of gratitude†, showing how insubstantial the amount of money and how effortlessly it would cost Scrooge to give to his workers, like Fezziwig gave to him, and how big the reward of seeing gratitude in the eyes of his workers would have and its impact. â€Å"Fezziwig had the power to render us happy or unhappy; to make our service light or burdensome; a pleasure or a toil. Say that his power lay in words and looks; in things so slight and insignificant that it is impossible to add and count them up: what then? The happiness he gave was quite as great as if it cost a fortune.† Fezziwig is a vital, key character in Scrooges transformation, used by Dickens as a FOIL against the character of Scrooge, shown to him by the Ghost of Christmas Past, contrasting the two types of rich, the one who shows kindness and generosity, reaping the rewards, by seeing the gratitude and fulfilment of happiness that brings, by giving to others. The other was on the opposite side like Scrooge, being lonely and bitter, with all the wealth in the world, yet a smile never breaking out onto their cold faces. The memory of Fezziwig’s generosity and holiday cheer helped to jolt and move Scrooge’s stony heart.

Thursday, October 10, 2019

According to Seamus Deane Essay

According to Seamus Deane, Translations is a play about â€Å"the tragedy of English Imperialism†. How far would you agree with this statement in relation to both Translations and Heart of Darkness? INTRO Although the location, language and structure of Brian Friel’s Translations differs unmistakably from that of Joseph Conrad’s Heart of Darkness, the topic of colonisation remains central to both. While the supposed sophistication of ‘civilised’ colonists is deconstructed in Conrad’s novella to reveal man’s common ‘darkness’, Friel’s play deals with the ways in which the consciousness of an entire culture is fractured by the transcription of one landscape (Gaelic, classical and traditional) for another (Anglo-Saxon, progressive and Imperialistic). 1 Friel uses the apparently passive plotting of an Ordnance Survey map to emphasise the loss of indigenous Irish tradition, social history and heritage felt by the natives of County Donegal in Ireland. The translation of the place-names automatically eliminates the secrets buried within the original name; it distorts rather than restores the ontological nature of the place-name. Friel uses Owen to expose the Imperialist outlook on ‘standardisation’ during his battle with Yolland over â€Å"Tobair Vree†: He begins a long discourse on how Tobair Vree came to acquire its name, identifying a well that once existed nearby and has long since dried up, with â€Å"Vree† an erosion of the Irish â€Å"Brian†. He then asks Yolland: â€Å"do we keep piety with a man long dead, long forgotten, his name eroded beyond recognition, whose trivial little story nobody in the parish remembers? † Even as he attempts to demonstrate the invalidity of ‘Tobair Vree’ as rightful place-name through its seemingly illogical associations, Owen contradicts his own argument. The reality that Owen himself remembers the tale behind the name reinstates the fact that as insignificant as this narrative may be to him, it remains the carrier of history and memories, both public and private. The name not only retells the anecdote which defined ‘Brian’s Well’, but also evokes Owen’s memories of his grandfather. The Irish place-names had developed into historical, cultural and social storehouses through their varied associations and values. The reduction of such ontological knowledge to an epistemological referent through colonial dispossession therefore reduces identity in â€Å"an eviction of sorts†. 2 The destructive force of English Imperialism is echoed in Conrad’s Heart of Darkness and is revealed to us through Marlow’s portrayal of the Africans he encounters and the treatment they are subject to. Forced to work under the conditions of European mechanical labour, the natives acquired expressions of the â€Å"deathlike indifference of unhappy savages† as they became reduced to â€Å"nothing but black shadows of disease and starvation†. The â€Å"civilised† colonists place the â€Å"savages† in chain gangs, enslaving them; eliminating their identities and breaking their spirit as a people. Throughout the entire novel we, the reader do not learn a single of the Africans’ names. They are collectively labelled â€Å"niggers†, â€Å"creatures†, â€Å"rebels†, â€Å"savages†, â€Å"enemies†, â€Å"ants† and â€Å"criminals† by the colonisers. Even the individual natives Marlow speaks of remain unnamed, distant and alien. This is exposed through the portrayal of the helmsman; although Marlow shared with him â€Å"a kind of partnership†, he is nevertheless reduced and objectified as merely â€Å"an instrument†. Conrad discloses the dying identity of the Congo’s indigenous inhabitants through Marlow’s initial observation of the â€Å"blind, white flicker †¦ which died out slowly† in their â€Å"enormous and vacant† eyes. 3 Friel illustrates Imperialism’s effect on identity unequivocally in his play through the function of Sarah. â€Å"My name is Sarah†. Unable to speak her own name previously, Sarah’s identity finally emerges and begins to flower. Language is demonstrated to be the key to memory; identity is formulated through language. Through Sarah’s speech, a hidden landscape of consciousness has been unlocked by Manus, ready to be explored. Sarah’s name is crucial in her self-definition and identity, just as with the names of places; her name encapsulates not only an identity, but also an origin and a lineage. Sarah blurts out â€Å"Sarah Johnny Sally† to Owen when asked her name, thus providing not only her Christian name but in addition those of her parents. Owen does not hesitate to reply â€Å"Of course! From Bun na hAbhann! † and complete this marker of the clan. He responds furthermore with his own identity, parentage and place of origin: â€Å"I’m Owen – Owen Hugh Mor. From Baile Beag. † Irish names in Translations quickly become linked not only with identification of an entity, but also with the narrative history associated with that identity through lineage and society. While Friel insists that â€Å"the play is about language and only language†, the fact that Sarah is silenced again by the colonisers could represent the suppressive and inconsiderate treatment imposed on the Irish people by the English Imperialists, denying them their freedom of expression and thus their right to an identity. 4 Conrad mirrors Sarah’s silence and consequent absence of identity in Heart of Darkness through his creation of Kurtz’s mistress who although described as â€Å"superb, wild-eyed and magnificent† in â€Å"her deliberate progress†, reveals the suffering she has endured under colonial domination through her visibly â€Å"wild sorrow† and â€Å"fear of some struggling, half-shaped resolve†. Her â€Å"formidable silence† contrasts wholly with Kurtz’s â€Å"ability to talk†. As a musician, politician, poet and humanitarian his â€Å"inextinguishable gift of noble and lofty expression† is equated with political power, thus giving Kurtz â€Å"a sense of real presence† which is evidently lacking amongst the native Africans who have become disassociated from their past, their origins and their control over the future. Their only capability in expressing themselves is through their appearance of â€Å"dumb pain†. Exactly like Friel’s natives, the original inhabitants of the Congo are â€Å"imprisoned in a linguistic contour which no longer matches the landscape of†¦ fact†.

Wednesday, October 9, 2019

Water analysis

Students are tested for their knowledge of basic titration technique and proper usage of specific-use probes (those used for conductivity, alkalinity, and pH, chloride, nitrate and hardness detection) on Logger Pro software. The purpose of this comprehensive lab is to determine the chemical properties of public drinking water found at four specific locations in the Toledo Ohio area.Students test the various repertories of this drinking water by subjecting it to the following tests: pH tests, conductivity tests, total and phenolphthalein alkalinity tests, total hardness, chloride tests, and nitrates tests. With respect to the data collected In this lab, students also use conversion factors to calculate the parts per million. Following directions carefully and prudently Is crucial for the success of the experiment and as well to the fact that the testing will be finished during the lab period.Tests like these are perform daily by industrial water treatment plant in order to ensure the Toledo such the EPA to report its findings within a written deadline. Obviously reports of water quality that are not up to the government's standards, (all of the standards will be listed at a later section in the report) will be subjected to further testing and isolated from public access until the standards are met.This lab mimics the daily routines of employed chemists at these facilities on a smaller scale. Students that chose to enter such profession will be held responsible for using the techniques learned in this lab. Safety Information: Most of the chemicals used in this lab are dangerous. Avoid bodily contact, ingestion or any type of spills. Assume that all of the reagents used in the lab are poisonous.Rinse the pH probe thoroughly with distilled water. Place the probe into a small beaker that contains one of the two calibration buffer solutions. B. Choose Experiment, Calibrate†¦ , and select the Sensor Setup tab. With the button for Port 1 (or Channel CHI) depressed , confirm or choose the Sensor: pH probe and Calibration: PH. Select the Calibrate tab and click on Calibrate Now. C. Gently stir the buffer with the pH probe. When the voltage reading of the pH probe is stable. Enter the pH value of the buffer solution (read off of the bottle of buffer solution) to the nearest 0. 01 intoValue 1 and press Keep. D. Rinse the probe with Del water and then place it in a small beaker that contains the second calibration solution. When the reading is stable, enter the pH value of the buffer solution to the nearest 0. 01 into Value 2 and press Keep. Press K to store the calibration. E. Check that the calibration worked by placing the probe back into the buffer solution. If the displayed value does not match the value of the buffer, exit out of Logger and reopen the window. The displayed probe in pH 7 buffer until it is later needed. 4. ) Obtain a suitable size of sample to determine the PH. Ml is suitable for this experiment. Measure this amount of sample using a graduated cylinder. Transfer the sample too ml glass beaker. 5. ) Place the pH probe into the beaker containing the sample. Record the pH of the sample on your Data sheet. 6. ) Rinse the probe with Del water and dry it. Immediately place the probe back into the pH buffer. Conductivity Test: 1 . ) The experiment should already be open on the laptop. If not, select the Expo. 14 Conductivity icon that is on the desktop. 2. ) Double check that the switch box is set to 0-Phipps/CM. This corresponds to 0-magma/L TTS (Total Dissolved Solids).If necessary, you may change this setting to match your sample's value. A high range standard is available if needed. 3. ) Calibrate the conductivity probe using a two- point calibration. Use the low-and mid-range solutions to perform the calibrations. A. Initiate the calibration procedure in the software b. Place the Conductivity Probe into a standard solution with a low conductivity value (this should be between O – IPPP/CM or O- MGM/ L TTS†¦ Say 1 moms/CM). Be sure the entire elongated hole with the electrode surfaces is submerged in the solution ND that there are no air bubbles along the electrode surface.Wait for the displayed voltage to stabilize. C. Enter the value of the standard solution in the appropriately chosen units. D. Repeat the calibration using the medium conductivity (this is between O – Phipps†¦ Say mass/CM) 4. ) Analyze the sample's conductivity a. Using a rinsed ml graduated cylinder, measure ml of the sample. B. Transfer this amount to anther clean and dry beaker. C. Place the probe into the beaker containing the sample. D. Wait for the reading to stabilize. Record the conductivity on your data sheet. E. Convert the reading into MGM/L and pimp. Source: Conductivity Probe, Fernier Software and Technology via their website www. Fernier. Com/support/manuals/) Total and Phenolphthalein Alkalinity Tests: 1 . ) Measure 50 ml of your sample in a graduated cylinder. Transfer the samp le into a mall volumetric flask. 2. ) Add three to five drops of phenolphthalein solution to you sample. 3. ) Set up a titration apparatus (where the clean burette is clamped too ring stand). 4. ) Obtain about mall of sulfuric acid (HASPS) into a larger beaker. 5. ) Full the burette with HASPS up until a point above the calibration mark (Mol).Place a waste beaker under the burette. Open the stopcock and release the remaining HASPS to get rid of air bubbles. 6. ) Record the exact concentration of the HASPS into your data sheet. Record the initial burette reading to the nearest 0. 01 ml. Replace the waste beaker with the flask containing the sample. 7. ) Titrate the sample too colorless endpoint. The solution will be barely pink Just before the endpoint of the solution. Add a few drops of 10% tessellate solution to the sample (do this Just before the endpoint of your titration! ) Record the final volume of the HASPS used. A.Use the mixed indicator brochures green/methyl red) this samp le should be green at the beginning and the endpoint should be a yellow-straw color. B. If needed, refill the burette with more HASPS. Record the initial value into your data table. Sample will become colorless and then the next drop should give you the straw color. 8. ) Record the phenolphthalein alkalinity and total alkalinity in militarily and pimp. Total Hardness Test: 1 . ) Obtain ml of your water sample measured on a graduated cylinder. Transfer the sample too mall volumetric flask. 2. ) Add one scoop of Universe indicator to your sample.The color of the solution should be reddish pink. 3. ) Obtain bout mall of DEED. Record the concentration of your iterant. 4. ) Set up a similar titration thingy. Rinse a burette with Del and then with DEED. 5. ) Fill the burette with DEED up until the calibration mark. Place the waste beaker under the burette. Open the stopcock to remove air bubbles. Record the initial volume of DEED on your data sheet to the nearest 0. 01 ml. 6. ) Titrate th e sample until the color of the solution changes to light blue. 7. ) Report the total hardness in militarily and pimp. (Other Sources: Water Chemistry, ANAL ERROR, Kippering, Edith.CHEMICAL Lab Manual. 2013-2014) Results: pH and POOH values per each sample tested Total alkalinity and phenolphthalein alkalinity Carbonate, Hydroxide, or Bicarbonate alkalinity present? Carbonate, Hydroxide, and or Bicarbonate alkalinity Total Hardness and Non-Carbonate hardness of each sample Nitrates/Chlorides present Conductivity tests per each sample Sample Calculation used in Sample 4: pH: Value collected from pH probe: 6. 42 pH [H+} = (1. Owe-14)/ (3. 8+7) = 2. 6+8 M POOH = -log[OH-] = -log(2. E-8) = 7. 58 Total alkalinity: When a 100. 0 ml sample is titrated with 0. 010 M [HCI], 0. ml acid is the equivalent of 1. 0 pimp Cacao (source). Total Volume of acid titrated (for both phenolphthalein and brochures green methyl red indicators): 5. 21 ml 0. Ml acid/l . 0 pimp Cacao -? 5. 21 ml acid/ x pimp C acao 52. 1 pimp cacao Phenolphthalein alkalinity: *Due to a shortage in the amount of sample available for immediate testing only ml was used for the titration using phenolphthalein indicator. The calculations below are doubled in order to compensate for variables used in the proportion) * of 1. 0 pimp Cacao (source). Volume of acid titrated: 1. 51 ml 2(o. Ml pimp cacao) = 2(1. 51 ml acid)/xx 5. pimp cacao Carbonate Alkalinity Present? Carbonate alkalinity is present when phenolphthalein alkalinity is not zero, but is less than half of the total alkalinity (source). Half of Total alkalinity = 15. 1/2 = 26. 05 pimp cacaos o 15. 1 pimp cacaos 26. 05 pimp cacao Yes carbonate alkalinity is present because the phenolphthalein value (15. 1 pimp Cacao) is a nonzero number that is less than half of the total alkalinity of the sample (26. 05 pimp Cacao). Carbonate Alkalinity: Carbonate alkalinity = 2 (phenolphthalein alkalinity) = 2(15. 1) pimp (CO)2- = 30. 2 pimp (cacao)2- Anton Hydroxide A lkalinity Present?Hydroxide alkalinity is present if phenolphthalein alkalinity is more than half of the total alkalinity. 15. 1 pimp cacaos 226. 05 pimp cacaos This statement is false thereby proving that no hydroxide alkalinity is present in this sample of water. Hydroxide alkalinity: N/A Bicarbonate Alkalinity Present? Bicarbonate alkalinity is present if phenolphthalein is less than half of the total alkalinity (source). 15. 1 pimp Cacao 26. 05 pimp Cacao Yes bicarbonate alkalinity is present in this sample because the phenolphthalein alkalinity value (15. 1 pimp Cacao) is less than half of the total alkalinity of the sample 26. 5 pimp Cacao). Bicarbonate Alkalinity: Bicarbonate Alkalinity = T-UP = 21. 9 pimp HCI- Total Hardness of Sample: When a 100. 0 ml sample is titrated with 0. MM DEED, 0. 10 ml of DEED is the equivalent of 1. 0 pimp Cacao (Kippering, Lab Manual). *Due too shortage in the amount of sample available for immediate testing only ml was used for the titration us ing phenolphthalein indicator. The calculations below are doubled in order to compensate for variables used in the proportion) * Volume of DEED titrated: 5. 25 ml 2(0. 1 ml pimp cacao) = 2(5. 25 ml DEED)/XX pimp cacao x = 52. 5 pimpNon-Carbonate hardness of the Sample: This is the difference between the Total Hardness and the Total Alkalinity (52. 5 pimp cacao) – (52. 1 pimp cacao) = 0. 4 pimp cacao Observations: Each of the four samples collected were visually similar. Each were colorless, and mostly free of suspended particles. None exhibited any odors. The test done on sample 4 for hardness were dissimilar to the tests done on the previous samples because it form an orange complex with the Universe indicator rather than the more commonly found red color. This may have been due to improper cleaning of glassware.The phenolphthalein alkalinity test done for sample 3 was peculiar in that addition of large amounts of iterant did not produce a visible endpoint. Upon further inve stigative assistance from the TA it was confirmed that the water sample was already at its most acidic state recognizable by the phenolphthalein indicator. Discussion: The purpose of this lab was to simulate the government-run procedures done to analyze public drinking water, an important event that is mandated by the Environmental Protection Agency (EPA). Understanding the underlying methods for success at these series of experiments is what the main idea is.The series requires students to recall and implement various laboratory techniques in order to process the sample of water. It is a comprehensive review on the following: using computer software such as Logger Pro, calibration technique using various specific probes, titration, understanding the basics of geochemistry in chemical expressions, understanding the effects of pH on solutions, and overall safety awareness. Chemists use these techniques to tackle more complex problems. For now, the simpler â€Å"mint† experimen ts listed above are up for discussion. The first experiment done was the total hardness test.This involves the iterant, DEED which forms a dark red complex with the indicator Universe. Adding this iterant to the sample-indicator mixture causes the red color to fade. This is the result of the unknown metal action in the sample reacting with the DEED and getting rid of the red complex formed. Thus the solution color turns blue, which signals the student that the endpoint has been reached. Essentially the amount of DEED titrated determines the amount of unknown metal present in the sample. These metals are Ca+ and Approximation of the specific action present is heavily reliant upon the pH of the ample water.If the pH is above 12, then only the Ca+ action can be detected. The total hardness of sample 1 was reported at 119. 9 pimp Cacao. The extent to how hard the water is, is denoted by a scale of water hardness. The scale used here was taken from the Fairfax County Water Authority, a w ater treatment facility. It states that: soft water has less than 17. 1 pimp of metal particles, slightly hard water has 17. 1 – 60 pimp metal particles, hard water has 120-180 pimp metal particles, and very hard water has over 180 pimp metal ions present (â€Å"Explanation of Water Hardness†, www. Face. G The water in sample 1 is therefore moderately hard to hard. Sample 2, 3, and 4 contain slightly hard water. In addition the Non- carbonate hardness was also calculated. The results from both the total and non-carbonate hardness tests for each sample are shown in the graph titled, â€Å"Total Hardness and Non-carbonate Hardness of each sample†. The non-carbonate hardness tests accounts for different anions other than the carbonates that may be responsible the presence of dissolved salts in drinking water. Such anions include certain types of sulfates, chlorides, and nitrates (Kippering, Lab Manual).The non-carbonate hardness of each sample cannot be determined until a full assessment of the total alkalinity of each sample is done. Thus these calculations are held for the third section of this paper. The EPA does not have a standard or hardness of water. In fact, the National Research Council states that hard drinking water generally contributes a small amount of calcium and magnesium human dietary needs (â€Å"Explanation of Water Hardness†, www. Face. Org). How can we tell what ions are present in each sample? This is entirely dependent on the relative pH of the samples which is discussed in the next section.Determining the pH of all four samples is a simple procedure. As long as the pH probe is calibrated using the correct buffers each determination should give an accurate result. PH is a measure of the concentration of protons (H+) in a sample. Solutions containing large exponentially small concentration of hydrogen ion give a large value pH and the opposite is true for higher concentrations. This phenomenon occurs because measu rement of pH is measured on a logarithmic scale. The pH values given by the computer can be converted into hydrogen ion concentrations by taking the negative log of the pH of the sample.Chemists use the ion- product of water theory to convert hydrogen ion concentration to hydroxide ion (OH-) concentration. Simple use the equation: K = [HUH+] *[H+] and [HUH+] can be used interchangeably Using these equations students can effortlessly convert the pH of their samples into their corresponding hydroxide concentrations as noted in the graph titled, â€Å"pH and POOH values per each sample tested,† The pH of sample 1 is 5. 5, which is highly acidic. Sample 2 has a pH of 6. 02. Sample 3 has a pH of 6. 49, whereas sample 4 has a pH of 6. 42 all of the samples tested here contained slightly acidic eater.The EPA does not have a standard for pH because it is considered a secondary drinking water contaminant, which is aesthetic (pH, www. Odd. Ohio. Gob). Although the EPA does not regulate this property of water, the Ohio Department of Health does provide additional causes and effects of unnatural pH levels. They claim that the our water, the soil composition that the surface water runs though and a host of others (pH, www. Odd. Ohio. Gob). These causes are most relevant as they have a direct impact on the quality of our drinking water, which comes primarily from surface waters.As a result from continued use of basic water (pH above 7) people report bitter tasting water, and buildup of minerals in plumbing (pH, www. Odd. Ohio. Gob). As a result from continued use of acidic water, residents will have sour tasting water, and metallic staining (pH, www. Odd. Ohio. Gob). Extreme cases will undoubtedly cause bodily harm Just as the reagent used in lab. As stated earlier, both calcium and magnesium ions can be detected in samples at a pH lower than 12. Since all of the tested sample have lower pH values, we can conclude that there are both calcium and magnesium ions presen t.The following experiment tested each sample for total and phenolphthalein alkalinity. Alkalinity is a measure f the amount of basic ions in a sample (Kippering, Lab Manual). The procedure for alkalinity is titration. Students find the phenolphthalein alkalinity first by titrating the sample with the phenolphthalein indicator to a clear endpoint and recording the amount of iterant (HCI) used. A second indicator, (brochures green methyl red) is added to the sample and further titrated to a straw yellow color. Students use the amount of HCI added in the first titration to calculate the phenolphthalein alkalinity.Then they use the total amount of HCI titrated to calculate the total alkalinity. The following expression was used to calculate all of the entries for total and phenolphthalein alkalinity: when a 100. 0 ml sample is titrated with 0. 010 M [HCI], 0. 10 ml acid is the equivalent of 1. 0 pimp Cacao (Kippering, Lab Manual). Each calculation can be seen in the graphs titled, â₠¬Å"Total alkalinity and Phenolphthalein alkalinity'. All of the measurements are calculated in pimp Cacao. Sample 1 produced a phenolphthalein alkalinity of pimp Cacao and a total alkalinity of 181 pimp Cacao.Sample 2 reduced a phenolphthalein alkalinity of O pimp Cacao and a total alkalinity of 18. 9 pimp Cacao Sample three gave a phenolphthalein alkalinity of 10 pimp Cacao and a total alkalinity of 54 pimp Cacao. Lastly Sample 4 gave a phenolphthalein alkalinity of 15. 1 pimp Cacao and a total alkalinity of 52. 1 pimp Cacao. In addition to these two measurements, students were also required to calculate the carbonate, hydroxide, and bicarbonate alkalinity if at all present in the samples. The results table for these variables are found under the table titled, â€Å"Carbonate, Hydroxide, or Bicarbonate alkalinity present?If the samples met a certain criteria, then they tested positive for the three possible alkalinity's. Students could then use the three equations listed in their procedure and calculations sheet to calculate the alkalinity of the corresponding anion present. A trend can be note in the tables above. Samples that had no hydroxide alkalinity tested positive for carbonate and bicarbonate alkalinity respectively. Samples 3 and 4 both shared carbonate and bicarbonate alkalinity. Thus sources of carbonate solids are the main contributors to their alkalinity. Sample 1 is the only one that is positive for hydroxide alkalinity.Thus salts of hydroxide must be the main contributor to its alkalinity. PH and alkalinity are treated similarly by the EPA, as they are both regarded as secondary standards. They are not regulated. In general alkalinity is treated much the same as basic solutions are. Total alkalinity is needed to calculate the non-carbonate hardness. Now the values for total alkalinity done. Students simply subtract the total hardness by the total alkalinity. The values given show the amount of dissolved solids that are not carbonates (such as sulfate, nitrate and chloride salts). The last three tests are the most simple.They involve the usage of specific probes Just as in the experiment for pH determination. The next experiment tested the conductivity of the four samples. Conductivity is a measurement of electrical activity in a sample. After proper calibration of the software, students place the conductivity probe into the sample and enter the value on the data sheet. The standard value of water conductivity is given in as/CM. All of the entries for the four samples are located under the table titled, â€Å"Conductivity tests per each sample,† Distilled water has a conductivity of about 0. as/CM to 3 as/CM whereas many rivers along the U. S. Have conductivities as large as 50 to 1500 as/CM (Conductivity, water. EPA. Gob). The results from the four samples tested show that the drinking water in the Toledo area is much similar to that of the water in all of the U. S. Waterways. The high voltage could be due to the dense population of dissolved ions present in each sample. Such quantities could produce a small electrical gradient. The very last two experiments were Just like the last experiment. This time students tested their sample for nitrates and chlorides present.A nitrate-specific probe was seed for the nitrate analysis and the chloride specific probe was used or the chloride analysis. After properly calibrating the probes, students immersed the probes into each sample at a time and collected the data displayed on the computer. The entries for these two experiments are located below the table titled, â€Å"Nitrates/Chlorides present†. Each value is expressed using the standard units of MGM/L. According to the Ohio EPA, the standard amount or nitrates in public water is MGM/L (Water Quality Standards Program, www. EPA. Tate. Oh. Us). A value higher than this standard violates he sanctions set forth by the EPA and leads to further investigation of the problematic water. Each of the four samples had a value much less than the standard, proving that the public drinking water from the Toledo are is partially free from nitrates. Why are nitrates so bad? We must look way back to the original source of our drinking water- surface water. Surface waters from rivers and lakes can easily become tainted with contaminants such as pesticides, wastes, and fertilizers (rich in nitrates).Although presence of nitrate to us may not be a bad thing to us, it most certainly is to the environment. Sudden increase in such nutrient bound runoff causes extreme algal blooms consume large amounts of oxygen in the water. This in turn suffocates aquatic organisms. And pesticide in our drinking water obviously poses as a health concern. The maximum amount of chloride allowed in public drinking water is OMG/L according to the United States EPA (â€Å"Basic Information about Disinfectants in Drinking Water: Chlorine, Chlorine and Chlorine Dioxide†,water. Pa. Gob). All four samples abi de by this regulatory standard. If the opposite had occurred the government would shut off the publics access to this eater. The chloride ion is very reactive, so in nature it is usually found attached to a group IA or AAA metal or to itself. By itself it can become dangerous. Error Analysis The probability of human error for this series of experiment is multiplied due to Mistakes were undoubtedly made; solutions were over-titrated, and probes were used that were not calibrated properly.One such example of human error is the source of the large difference between sample Xi's total alkalinity compared to the other three samples. This is a sign that a student over-titrated the solution. This exults in a volume of hydrochloric acid titrated that is larger than the actual value needed. Thus alkalinity value is higher because the calculation shows that a larger amount of acid was needed to neutralize the water sample. It gives the false impression that the sample was very alkaline/basic to begin with.To fix this, students should add iterant by the ml until resistance to color change takes longer, then add drop wise. Calibration of the probes was always an issue. Although the samples tested positive for the standards governed by the Environmental Protection agency, the results from the conductivity tests were a little high. Thus to FL this problem, he probes must be properly calibrate. To properly calibrate a probe means to immerse he sensitive head into the solution (so the small white dot is Just below the liquid surface) and enter the value of the corresponding standard into the computer.The one step that catches mot students is the waiting time. Impatience lead to improper calibration. Cross contamination of the probes by dipping them in the samples without cleaning them with denizen water and wiping them off with a clean towel could also have adversely affected the results from the experiment. Misinterpreting he values displayed on measurement instruments such as the graduated cylinder and the values on the computer could have led to tremendous error. Misuse of significant figures was a drawback caused by both the student and the computer.This applies mostly to the calculation of hydrogen ions and hydroxide ions from pH values. The computer at lab showed pH values using both two one and two significant figures. Constant rounding up of number during calculations ay have alter the actual value of the hydroxide concentration slightly. Conclusion: The purpose of this series of experiment was to provide students a real-life application of nearly all of the techniques they have learned in their first year of general chemistry lab.The concept of the entire procedure was to show student how certain chemical species (like dissolved actions, anion, and organisms perhaps) interact in aqueous solution. The results from the series of experiments show that the various techniques used in college lab are similar to the ones used by employed chemists in w ater treatment plant. Where's the proof? Well by looking at the results from this lab and comparing them to the standards produced by the Environmental Protection Agency, one could say that they are quite similar.

Tuesday, October 8, 2019

CONDOM USE IN KENYA Assignment Example | Topics and Well Written Essays - 500 words

CONDOM USE IN KENYA - Assignment Example The distribution of the visual aids in the brochures will involve the use of famous Kenyan Musicians. Music has been used to create awareness on condom use in adults. The use of famous musicians will attract the attention of several adults thereby leading to increased condom use awareness to several residents of Kisumu. The awareness raising will be done through road shows and vernacular radio talk shows. Vernacular Radio talk shows will be effective in reaching adults in the remote rural areas who cannot be accessed through road transport. Importantly, local and famous musicians who understand the native language will be appropriate in delivering the message to the adults who may not be able to read and understand English and Kiswahili (national languages). The visual aids should have the information concerning right and consistent use of condoms, consequences of not using condoms, and the perceived barriers. Members of the public must lean how to use condoms correctly. Most adults normally use condoms in the first sex encounter but later ignore the usage. In addition, women must also be made aware of their role in making decisions concerning condom use. Women must ensure that men use condoms whenever they engage in sex. The Health Belief Model suggests that simple knowledge and awareness about HIV will not necessarily reduce risky behavior that lead to high prevalence of HIV/AIDS. Every individual must know that he or she is susceptible to the virus. In addition, individuals must learnt HIV infection is a serious health hazard, and learn the benefits of taking preventive actions. Consequently, individuals must learn that potential barriers to taking preventive action are outweighed by potential benefits (Volk and Koopman, np). The use of local and famous musicians in delivering the message ensures that local perceptions are explained. These musicians are more familiar with the culture of Kisumu people; communication of culture bias

Monday, October 7, 2019

The Power of Public Relations Essay Example | Topics and Well Written Essays - 500 words

The Power of Public Relations - Essay Example The roles of corporations have emerged to be criminal and obscene in nature that it becomes difficult to even consider proposing a change in their business conduct and culture.A clear, well-planned policy and public relations approach will rally the audience or the public to support the leader amidst the counter-campaign of opponents, not only political but also corporate in nature. This has become necessary in the US political landscape and mass communication due to the open encroachment of corporate actors in policy-making and informing the public. After all, the majority of the so-called mainstream media are corporate in nature and they tend to support their advertisers despite obvious negative actions they are committing against the majority of the public. In addition, the delineation between freedom and expression and controlled information has been blurred to a point where truth may be difficult to identify (Hall, 2007). To conclude, public relations for a political leader or c lient may prove difficult if one is on the side for the public good. A need to bargain with major actors becomes necessary to strike a balance and make the opposite side understand the importance of sustainability even in corporate dealings. Where a balance may be bargained, the problem will be on safeguarding an equitable implementation of policy. All these encompass the work of the public relations practitioner and should be considered carefully in their PR packages especially for politicians.