AMINO ACIDS SUSMITA DAS SWAPNA MONDAL OBJECTIVES To study about Amino acids. To study the classifications of amino acids based on different headings. To study the functions of amino acids. INTRODUCTION Amino acids:• Amino acids are monomers of protein. • Amino acids are group of organic compounds which contain two functional groups. One is Amino group(NH2) and the other is Carboxyl group(COOH). • Proteins are broken down into amino acids on hydrolysis. • Each amino acid also have a
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EXPERIMENT 2: Recrystallization and Melting Point Recrystallization (or Crystallization) is a technique used to purify solids. This procedure relies on the fact that solubility increases as temperature increases (you can dissolve more sugar in hot water than in cold water). As a hot‚ saturated solution cools‚ it becomes supersaturated and the solute precipitates (crystallizes) out. In a recrystallization procedure‚ an impure (crude) solid is dissolved in a hot solvent. As this solution is cooled
Free Solubility Solid Crystal
A carboxylic acid is an organic acid characterized by the presence of at least one carboxyl group. The general formula of a carboxylic acid is R-COOH‚ where R is some monovalent functional group. A carboxyl group (or carboxy) is a functional group consisting of a carbonyl (RR’C=O) and a hydroxyl (R-O-H)‚ which has the formula -C(=O)OH‚ usually written as -COOH or -CO2H. Carboxylic acids are Brønsted-Lowry acids because they are proton (H+) donors. They are the most common type of organic acid. Among
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Depression Everyone experiences variations in moods. Many people at some point in life feel disappointment‚ grief that accompanies the loss of a loved one‚ or just the simple blues. Severe or prolonged depression that interferes with one’s ability to function‚ feel pleasure or maintain interest is not a mere case of the blues. It is an illness. Depression is defined as an illness that involves the body‚ mood‚ and thoughts and that affects the way a person eats‚ sleeps‚ feels about himself or
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Depression is not only a state of being sad‚ it is a disease that conquers the ability to feel emotion‚ whether good or bad‚ whatsoever. Depression not only involves the mind‚ it also involves the body and thoughts. In different cultures some complain of excessive headaches and extreme pain and this is identified as depression‚ moderate or otherwise. This disease can be passed down through genes or can follow external events or can be caused by a chemical imbalance in the brain. Depression affects
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Depression By: Shelly McNalley Introduction to Anthropology‚ Psychology‚ and Sociology Teacher: Michelle Sharpe May 22‚ 2013 Depression I. What is Depression? II. Signs and Symptoms of Depression a. Feelings of helplessness and hopelessness b. Loss of interest in daily activities c. Appetite or weight changes d. Sleep changes e. Anger or irritability f. Loss of energy g. Self-loathing h. Reckless behavior i. Concentration problems
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LAB 6. ACIDS AND BASES: PH AND BUFFERS PURPOSE: To determine the pH of common acids and bases using a pH meter‚ pH paper‚ and red cabbage indicator. To test the effect of adding an acid or base to a buffer solution. SAFETY CONCERNS: Always wear safety goggles. Wash with soap and water if skin contacts acids or bases. ACIDS: An Acid is a substance that when dissolved in water will produce hydrogen ions‚ H+‚ in the solution. An acid that does not contain carbon is called an inorganic
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“Demographic and Psychosocial Risk Factors for Depression in Adolescents” CHAPTER 1 INTRODUCTION Unhappy mood‚ sad feelings‚ irritability and loss of interest in every aspect of life‚ every person experience one or couple of them in his or her life occasionally but when they all are collectively experienced for significant period of time‚ it means that person may on the way for depression. When people feel anxious there is at least a sign that they are engaged in their future‚ they feel fearful
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Experiment 4: ACIDS AND BASES: PH Measurements and Macroscale Titration CHM023L – A12 Group no. 6 Members: | Contributions: | | Conclusion | | Recommendation | | Tables and figures with analysis | | Principles‚ Equation | | Abstract‚ tables | Date Performed: February 28‚ 2012 - Tuesday Date Submitted: March 6‚ 2012 - Tuesday Submitted to: ------------------------------------------------- ABSTRACT: This experiment introduces us the pH measurement and application of macroscale titration
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Suggested time allotment: 5 to 6 hours MODULE 2 ACIDS AND BASES In Module 1‚ you identified common properties of solutions using different methods. You learned how to report the amount of the components in a given volume of solution. You also found out that not all solutions are liquid. Some of them are solids and others are gases. Towards the end of the module‚ you investigated the factors that affect how fast a solid dissolves in water. Most of the solutions you studied in Module 1
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