1) What are amino acids? page # 202 Amino acids are essentially the building blocks of protein. There are 20 different kind of amino acids that form protein but only three of them are essential for humans. those three are phenylalanine‚ tryptophan‚ and valine. These amino acids make up about 75% of the body and the essential amino acids need to be ingested every day or else protein degradation can occur. 2) List all of the roles proteins have in our bodies. page #202 There are many different
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Chapter 10 ComMon Acids and Alkalis 10.1 Acids and Alkalis 1. Acids taste sour. Many fruits contain acids. 2. The three mineral acids commonly found in the laboratory are hydrochloric acid‚ sulphuric acid and nitric acid. 3. Alkalis taste bitter and feel soapy or slippery. 4. The common alkalis found in the laboratory are sodium hydroxide solution‚ potassium hydroxide solution‚ calcium hydroxide solution and ammonia solution. 10.2 Acid-Alkali Indicators 1. An acid-alkali indicator
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PRELIMINERIES Due to highly development of chemical and biochemical industries‚ acetic acid has largely produced to fulfil the needs of world demand in production of daily used products and for pharmaceutical needs. Therefore‚ this study is carried out to introduce the production of acetic acid using biological pathways which includes the used of microorganisms. In this chapter will briefly explained on the knowledge about acetic acid and the microorganism. The chemical and biochemical pathways of production
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Acetylsalicylic Acid Experiment 01/25/2013 CHM Lab- 2211 Sec 0016 Instructor: Jennifer Reed Introduction: Commonly used as Aspirin‚ acetylsalicylic acid is an analgesic (pain reliever)‚ which is one of the products of the esterification reaction between salicylic acid and acetic anhydride. This esterification occurs since the hydroxyl group from the salicylic acid reacts with acetic anhydride to form an ester. In this experiment‚ we will be able to recreate this acid catalyzed reaction
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Effects of Acid Rain on Lakes and Trees Acid rain has long been argued by society’s most formidable minds. It indirectly destroys ecosystems that surround forests and lakes (Taylor‚ 26). People need to make decisions dealing with the destruction of nature and the role acid rain plays in it. Acid rain destroys millions of forests and lakes (Taylor‚ 26 ). Studies show that acid rain is one of the largest contributing factors in the death of forests and lakes. Acid rain indirectly
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ACID RAIN name here Engineering 303i Professor h May 3‚ 2004 BIBLIOGRAPHY Penguin Publishing House‚ 1987 ‚ Pearce Fred Acid Rain. What is it and what is it doing to us? New York Publishers‚ 1989‚ William Stone Acid Rain. Fiend or Foe? Lucent books‚ Inc. 1990‚ Steward Gail Acid Rain. Acid Rain Acid rain is a great problem in our world. It causes fish and plants to die because earth’s rainwaters are contaminated. It also causes harm to people as well‚ because
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Acids and Bases Are Everywhere Every liquid you see will probably have either acidic or basic traits. Water (H2O) can be both an acid and a base‚ depending on how you look at it. It can be considered an acid in some reactions and a base in others. Water can even react with itself to form acids and bases. It happens in really small amounts‚ so it won’t change your experiments at all. It goes like this: 2H2O --> H2O + H+ + OH- --> H3O+ + OH- See how the hydrogen ion was transferred? Most of the
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This solution served as the source of ionic Iron for the remainder of the lab and was labeled “stock ionic Iron solution.” Next‚ a 50-mL aqueous ionic Iron and FerroZine® complex solution was prepared by adding 5.00mL stock ionic Iron‚ 3-mL of acetic acid buffer‚ 2-mL of 5% hydroxylamine hydrochloride‚ allowing five minutes for hydroxylamine to reduce Fe3+ to Fe2+‚ adding 2.5-mL of 0.01 M FerroZine® solution‚ and mixing well. A single beam Agilent technologies CARY60-UV-Vis Spectrophotometer was then
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ChE 171 Assignment 1. Essential and Non-essential Amino acids Amino acids are organic compounds which contain both an amino group and a carboxyl group and may be divided into two groups basing on whether they are produced internally by the human body or not: essential and non-essential amino acids (hyperphysics.phy-astr.gsu.edu‚ 2012). An essential amino acid (indispensable amino acid) is an amino acid which an organism needs to ingest because it is necessary for
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Acetylsalicylic acid is the active pharmaceutical ingredient in aspirin and can be synthesized by the esterification reaction of salicylic acid and acetic anhydride in the presence of an acid catalyst. An esterification reaction is when an acid is converted into an ester by combining with an alcohol and removing a water molecule. When heating the salicylic acid mixture in the warm water bath‚ the mixture should be removed from the bath within 8 minutes‚ to reduce the chance of the acetylsalicylic acid decomposing
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