Safe Water Drinking And Pollution - 1933 Words

In today’s society, we face a large set of problems that affect each and every person every single day. Throughout the semester, there have been several different instances that have shown the importance of truly understanding what these issues are and how some of these issues can be fixed. The main environmental issue that I am going to discuss I this paper is safe water drinking and pollution, as pollution directs towards to the hazardous we do to it by simply polluting as well as how some of our pollution affects the air and living conditions that we face. I chose this environmental issue because I find it to be one of the largest issues that the whole world faces, especially here in Northwest Indiana, which not enough people take as†¦show more content†¦There are such strategies that must help address any concerns, foster development in new strategies, protect the water, and work together in developing access to the water systems. These initiatives of people who a re looking to ensure safe water is continuously looked over by larger groups of people and acts such as the Clean Water State Revolving Fund, Safe Drinking Water Act, and even people like the Natural resources Conservation Service and the Environmental Protection Agency. What people sometimes forget is that under these acts, while there are people who are looking to help support these initiatives, the people who embrace the world must practice better strategies that will embrace these acts and support groups to help ensure that water will be safe for drinking. Many people forget that water is not just a free good to us for use at any time, because if the water supply were to ever be completely damaged and polluted, the outreach for fresh, safe water to drink would be minimal, therefore a struggle for people in America as well as around the world. Water is arguably the most important natural resource to us here on Earth and should not be used and abused. There are several different t hings that people can work towards to help make things better. The main three types of ways to help assist all these acts the government and other support groups can do is to advertise support groups, advertise about contamination and also advertiseShow MoreRelatedThe Factors Affecting Safe Drinking-Water (Planning and Essay Basic)1485 Words   |  6 Pagesaffecting safe drinking water: Describe and explain the different factors effecting access to safe drinking water. (10 marks) Planning and Notes: * From 1996 – 2006 +/- 1.56 billion people gained access to improved drinking-water sources. * Today 87% people drink from improved water sources compared to 77% in 1990. 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% Mgo Determination Free Essays

Vu Ngo % MgO Determination September 10, 2012 Procedure: Reference to lab manual Data: Mass of Na2EDTA†¢2H2O, g| . 9289| Standardization of EDTA Solution | Trial 1| Trial 2| Final buret reading, EDTA (mL)| 18. 5| 36. We will write a custom essay sample on % Mgo Determination or any similar topic only for you Order Now 7| Initial buret reading, EDTA(mL)| 0. 5| 18. 5| Determination of % MgO of Unknown Unknown Number | 4J| | Sample 1| Sample 2| Sample 3| Mass of sample (g)| 0. 2135| 0. 2132| 0. 2139| Final buret reading, EDTA (mL)| 73. 5| 74. 2| 74. 2| Initial buret reading, EDTA(mL)| 0. 5| 0| 0| Measurement of water blank Final buret reading, EDTA(mL)| 14. 5| Initial buret reading, EDTA(mL)| 14. 2| Sample Calculation: Given: Molar mass of Na2EDTA*2H2O, g/mol| 372. 25| Expected M of EDTA solution, mol/L (M)| 0. 01| Concentration of Zn2+, (M)| 0. 0125| 10mL*1L1000mL= 0. 01L C1V1=C2V2 .0125M. 010L)=C2(. 018L) C2=. 0125M*. 0100L. 0180L=. 00694M .00694M+. 0687M2=. 00691M C2=. 00691M. 073=5. 04*10-4mol %MgO=5. 04*10-4mol40. 05. 2135g*100=9. 51% Results: Standardization of EDTA Solution | Trial 1| Trial 2| Volume used, EDTA(mL)| 18. 0| 18. 2| Molarity of EDTA solution, (M)| 0. 00694| 0. 00687| Average Molarity of EDTA solution, (M)| 0. 00691| Determination of % MgO of Unknown | Sample 1| Sample 2| Sample 3| Volume used, EDTA (mL)| 73. | 74. 2| 74. 2| Mole of Mg2+in sample| 5. 04E-04| 5. 12E-04| 5. 12E-04| % of MgO in sample, %| 9. 52| 9. 69| 9. 66| Average % of MgO in sample, %| 9. 62| Error Analysis: The measurement of the sample in gram, have +/- . 0001g error. The measurement using the the buret have a +/- . 1mL error. These types of measurement error are based on the sensitivity of the instrument, du ring the measurement. These errors could cause the result to deviate from the actual answer. During the experiment, using titration to find the end point. Because of the end point was unknown, a single drop could determine its end point. There might be an extra drop that caused the data to vary as both parts of the experiment have determined. The first trial of both the experiment, the number is different, because of the unsure number of drops. Using the result from the first trial, the result of the second trial was more accurate. As proven from the experiment of determination of percent of MgO of the unknown. The sample 2 and sample 3 testing results in similarity that differ from the sample one. The sample used 73. 0 ml of the EDTA solution, while both samples 2 and 3 used 74. 2 ml of EDTA solution. This will cause a tip in the result toward a lower number used to find the end point. This error is not a major factor since it is only of my 1. 2 ml of the actual result. The percent of all three result of MgO is different under 1 percent different. Thus, a very reasonable result in all three of the experiment. Discussion: This experiment is to help us understand the reaction between an anion and the metal cation. It demonstrated the Lewis base understanding of ethylenediaminetetraacetic acid (EDTA). The goal was achieved through titration of the sample in multiple trials in order to find its endpoint. The end point was found when the pink coloration, due to EBT was added, turn into a blue/ violet color. This signified its endpoint of the sample. The result is good quality, because of the deviation from the first trial and last trial that was done on the same sample. The result is off by . 2ml in the standardization of EDTA solution. In the second part of the determination of % MgO of the unknown; the first, second, and third sample the percentage displaces is well under 1% difference. The result is worth 99% confident that the result is good quality, because of the consistency of the data. How to cite % Mgo Determination, Papers

The Causes and Effects of Childhood Obesity free essay sample

The Causes and Effects of Childhood Obesity Karla Bertram ENG122: English Composition II Instructor Tamara Dorris September 21, 2011 The Causes and Effects of Childhood Obesity Recently, childhood obesity has grown to epidemic proportions. It has tripled in the last three decades and now approximately one in three children are overweight or obese. According to Black’s Medical Dictionary, obesity is â€Å"a condition in which the energy stores of the body (mainly fat) are too great† (AC Black 2010). It has even grabbed the attention of politicians as well as medical professionals. The First Lady, Michelle Obama has even begun a campaign called â€Å"Let’s Move,† (America’s Move to Raise a Healthier Generation of Kids). Americans have become alarmed at the increase in the amount of children and adolescents that have become affected. This paper will show the causes of this growing epidemic affecting our youth and the health problems it causes, that are usually associated with adults. We will write a custom essay sample on The Causes and Effects of Childhood Obesity or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page So many things are probable causes of childhood obesity, but not one is solely responsible. T. Robinson claims that, â€Å"Today children spend more time indoors watching television and sitting in front of computer screens or PlayStations. The increased technology in the lives of children appears to be associated with the rise in obesity† (T. Robinson 2001). Another problem causing this epidemic is unhealthy eating habits encouraged by commercials for fast food restaurants, candy and soda. Other causes stated by professionals include; genetic, hormonal, and neurological. The growing concern is due partially to the severe health issues that accompany obesity. Such as: type two diabetes, obstructive sleep apnea, asthma, liver disease, cardiovascular problems, and hypertension. Michelle Obama announced, â€Å"The physical and emotional health of an entire generation and the economic health and security of our nation is at stake† (2010). Our children should not have these grown up concerns. Why have we allowed our technological advances to ruin the health of our children? There are so many articles in newspapers and magazines that express the concerns of the growing epidemic of childhood obesity. Besides the articles, there are medical digests and reports available to be viewed by the public. The United States National Library of Medicine as well as The White House Task Force on Childhood Obesity Report to the President has invaluable information. There have been many television news reports and talk shows talking about childhood obesity and the catastrophic increases in recent years. All of this information is available online as well as in the Ashford University Library. References