Synthesis Of The Iodine Solution Essay - 959 Words

Introduction: Vitamin C, also known as ascorbic acid, is an important vitamin for a healthy diet. It is important in the growth and repair of tissue, skin, wounds, bones and teeth. It is also an antioxidant. Vitamin C is found in fruit juice and to discover how much vitamin C is in fruit juice, a titration can be performed. A titration is a lab method used to determine an unknown concentration of a solution by adding a reagent with a known concentration. The main goals of this experiment were to perform a redox titration and improve titration technique, to become familiar with the redox reactions with organic molecules, and to determine the amount of vitamin C in a sample of fruit juice. Experimental: Part 1 of the experiment was the standardization of the Iodine solution. First, three ascorbic acid samples were weighed out to 0.10 grams each and then placed into a 250mL Erlenmeyer flask. Each flask containing the sample was then filled with 100mL of distilled water and the ascorbic acid dissolved. Next, 100 mL of the stock I2 solution was measured into a 400mL beaker and 150 mL of water was added and thoroughly stirred. A buret was obtained, washed thoroughly, and then rinsed three times with the I2 solution. Then the buret was filled with the I2 solution. 1 mL of starch indicator was added to the first ascorbic acid sample. An initial reading on the buret was recorded and then the titration began. The flask was gently swirled to mix the solution as the titration wasShow MoreRelatedEnzyme Functions And How The Temperature Of The Reaction Mixture Influences Starch Synthesis1414 Words   |  6 PagesUnit 4 - Starch Synthesis In this lab, I tested in which conditions starch synthesis will take place and how the temperature of the reaction mixture influences starch synthesis. My main goal for this experiment is to learn about the basic principles of enzyme functions, and how their environment around them can influence them. Hypotheses: I hypothesized that glucose would give off the most starch, compared to the other solutions, and I also predict that the room temperature test tubes would beRead MoreGelatin cryogel sheets (5%) were synthesized using glutaraldehyde as the cross-linker. The aldehyde900 Words   |  4 Pagesthe amount of cross-linker required was low i.e., the amount of cross-linker required decreases with increase in monomer concentration. Increase in polymer concentration also leads to less elasticity in the cryogel. Standardizations done for the synthesis of optimum concentrations of Gelatin and glutaraldehyde required is given in Table 1.1. Gels with low gelatin concentrations were fragile and had low mechanical strength. Concentration of gelatin was optimized to be 5% which satisfied the propertiesRead MoreTesting the concentration of Vitamin C in different juices and fruits1130 Words   |  5 Pagesfood additive. Vitamin C is used in the synthesis of collagen as well as functions as an anti-oxidant. The deficiency of Vitamin C causes a disease called scurvy in humans. To determine the amount of Vitamin C in the substances I will use titration. Titration is a way to measure the unknown amount of a chemical in a solution (the titrant) by adding a measured amount of a chemical with a known concentration (the titrating solution). The titrating solution reacts with the titrant, and the endpointRead MoreThe Presence Of Vitamin C1514 Words   |  7 Pagesrepair. The lack of Vitamin C in one’s system can lead to numerous kinds of illnesses. For example, severe Vitamin C in a prolonged period can lead to scurvy. Vitamin C can be obtained from fruit, vegetables, and lab made Vitamin C tablets. The synthesis of Vitamin C supplements in the laboratory was found to be extremely efficient in 1933. They are now largely manufactured in laboratories and sold to the market. However, degradation of Vitamin C occurs over time. The rate of degradation will beRead MorePre-lab: Identifying Carbohydrates1012 Words   |  5 PagesCarbohydrates There were many ranges of color changes in the Benedicts test and Iodine stain. For the Benedicts test, this oxidation/reduction response changes the arrangement of the reducing sugar creating a colored precipitate. The change in color is correlated to the first concentration of the reducing sugar. For the iodine test, the three dimensional structure of various polysaccharides permits them to react with the iodine stain to produce a certain color. As far as the molecular level, there is anRead MoreTaking the a Train Lab Report Essay657 Words   |  3 Pages 1. Introduction: This lab focused on showing the reaction that takes place between zinc and iodine using only deionized water instead of acetic acid (or vinegar) as we did in the previous lab by adding acetic acid to zinc iodide. The purpose of this lab was to see how water created the reaction and another compound or precipitate. Focus Question: Zn(OH)2 was the product when zinc and iodine were reacted without the presence of acetic acid in the water. Confidence Report: I am confident thatRead MoreCarbohydrates, Proteins, Lipids, and Nucleic Acid1514 Words   |  7 PagesBackground Most organic compounds in living organisms are carbohydrates, proteins, lipids, and nucleic acids they are called macromolecules. Each of these macromolecules is made of smaller subunits. These subunits are linked by dehydration synthesis. Dehydration synthesis is an energy requiring process in which a molecule of water is removing and the two subunits are boded covalently. This energy releasing process is called hydrolysis. The subunits of macromolecules are held together by covalent bondsRead MoreMedia Is A Pharmaceutical Liquid956 Words   |  4 Pagesx-ray, fluoroscopy, MRI, and computed tomography scans. Contrast media is a solution that can be administered into a person one of three ways: intravenously, orally, or rectally. The patient might have to drink the contrast solution before the exam begins. Although there are many flavors, it can taste chalky. The contrast agent can also be injected into a joint space. It is most commonly used in orthopedics. Barium and iodine are t he two agents that are most commonly used. Gadolinium is also used inRead MoreUse Of Dye And Its Effects On Society863 Words   |  4 Pagescan help specific organs, blood vessels and tissue types accurately visual. It is used in xray, fluoroscopy and computed tomography scans. Contrast dye is a solution administrated into a person one of three ways: Intravenously, orally, or rectally. The agent can be injected into a joint space and most commonly is in orthopedics. Barium and iodine is most commonly used agent. It has a relatively harmless interaction with the body. Although it is normally harmless. All things can have a bad reactionRead MoreThe Biological Compounds Of Proteins, Lipids And Nucleic1747 Words   |  7 PagesABSTRACT: The purpose of this lab is to detect carbohydrates, proteins, lipids and nucleic acids in different compounds by performing several different tests, such as Benedict’s test, Iodine test for starch, Biuret test for protein, Sudan IV color test for lipids, grease spot test and the Dische Diphenylamine Test. Most of the chemical compounds that are present in living organisms consist of covalently bonded carbon atoms. These compounds are organic compounds because they are either produced

Top Secret Facts About The Obtacles in Education Essay Samples

Top Secret Facts About The Obtacles in Education Essay Samples Hard work and success go together because life was made to be tough. There isn't anything wrong with wanting more from life and your career, and so we seek to a higher degree of education. College life may be a difficult situation to get used to and handle. The New Fuss About the Obtacles in Education Essay Samples Anyway, you're absolutely free to include both but the outcome will be more bulky and complicated concerning the structure and the stream of thought and you'll need a lot more time to fulfill it in the correct way. In effect, there's additional info on the impact of atmosphere on populace than the impact of populace on atmosphere. When there's no structure a student can learn more about the education system on their own time free of pressure or the rights and wrongs. Thus the judgment is neither demographic nor financial, however in terms of the kind of immigration that will exploit the occasionally contradictory elements of diversity along with cohesiveness. Vital Pieces of the Obtacles in Education Essay Samples An education essay is essentially a paper, which talks about various facets of education. The more transparent you're in your essays, the simpler it is for the admissions committee to find that you're a fantastic match for their institution. Your essay doesn't need to get filled with good obstacles. An education essay can arrive in form of a narrative regarding the experience of a single individual or may be an essay describing one's opinion about the field of education. The reader wishes to be moved. There is quite a brief discussion of each method if it's vital to make sure that everybody understands it. By the moment you complete the last draft, you should not simply delight in the way you see yourself, but it's also wise to delight the reader. What You need to Do If you don't have any work experience, then you ought to stick to the exact same format. T here's really no mandated requirement for parents to have an official education to have the ability to help children in home schooling. Children aren't frightened that they is an incorrect answer. Homeschooling, as stated by the author, must be a significant decision for families since it's the future of the children which are at stake. Homeschooling As a Topic By now, you most likely know why homeschooling, generally speaking, isn't a wonderful topic. Very few people may cover the complete price of an education by themselves, so knowing all your options can be useful. 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A History of the Obtacles in Education Essay Samples Refuted The primary difference between traditional models and contemporary leadership models would be all conventional models of leadership emphasise characteristics or behaviours of only a single leader within a specific group where as emergent models supply a space to have more than 1 leader at the very same moment. As a last point it's essential to mention the significance of expansive leadership. The period differentiation' is explained as meaning to deal with these kinds of differences. Some remedy to the problem which could be acceptable to all linguistic groups have to be solved and evolved. The Benefits of the Obtacles in Education Essay Samples All jobs in the modern world have many benefits and pitfalls. Summary of the Business and Owner The business brand has without doubt grown to be a success in today's society. Therefore, there's a strong relationship between the company and the founder. 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Student under lots of stress may end up having depression that could bring about student to think they are not living up to others expectation or their very own expectation. How to Get Started with the Obtacles in Education Essay Samples? You might also want to take part in a couple of extracurricular activities, go ahead. If you are ready to spend the job, your efforts will pay off. Furthermore, it pays to un derstand how to communicate well.

Standford Prison Experiment Free Essays

bob February 5, 2013 Research Methods Stanford Prison Experiment 1. Prisoners were put under a great deal of stress. The prisoners were physiologically and physically harmed. We will write a custom essay sample on Standford Prison Experiment or any similar topic only for you Order Now Prisoners were stripped naked, chained, and was forced to wear bags over their heads. 2. Yes there was voluntary participation in the experiment, because all of the participants signed up for the experiment. But the acts committed in the experiment most likely weren’t voluntary, meaning that the prisoners did not volunteer to be treated how they were treated. They didn’t know that they would be involved in unethical acts and be treated unfairly. 3. Yes participants were deceived; an example would be that their consent forms were not complete and did not properly address all that would take place in the experiment. There was a huge invasion of privacy, not to mention the surprise arrests. The prison was supposed to be a â€Å"safe environment† to study imprisonment, but Zimbardo did not take into consideration that peer pressure would make it difficult to withdraw. 4. Yes I believed the participants were harmed mentally because of the physiological abuse they were taking. I found no benefits out of the harm either way. 5. Researchers try to overcome the ethical issues by saying that the prisoners were treated how real prisoners would be treated. ACJS The ACJS would apply to the prison experiment by letting the guards know that in their professional activities as guards, members of the ACJS are committed to enhancing the general well-being of society and of the individuals and groups within it. Members of the Academy are especially careful to avoid incompetent, unethical or unscrupulous use of criminal justice knowledge. They recognize the great potential for harm that is associated with the study of criminal justice, and they do not knowingly place the well-being of themselves or other people in jeopardy in their professional work. Members of the Academy respect the rights, dignity and worth of all people. How to cite Standford Prison Experiment, Papers