Crystallization of Benzoic Acid Purpose: The purpose of this experiment is to purify benzoic acid by crystallization. Procedure: 1. 0.5g impure benzoic acid was placed in a 50mL Erlenmeyer flask. 15mL of water was added and the mixture was heated to a boil on a hot plate. 0.5mL of water was added to the flask‚ while swirling the flask. The mixture was boiled until the benzoic acid completely dissolved. The total volume of water used was recorded. The black solid that remain in the dissolved
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Hepatitis C Virus Hepatitis is an inflammation of the liver‚ which can be caused by several different viruses. It can also be acute or chronic‚ depending on the particular virus and stage of the disease. The different types of hepatitis are hepatitis A (HAV)‚ hepatitis B (HBV)‚ hepatitis B- associated delta (HDV)‚ hepatitis C (HCV) (Porth 2005). These viruses are capable of being transmitted in many different ways but each one will instigate a viral response and inflammation within the liver
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of producing an organic fertilizer by utilizing fish‚ particularly heads of fish such as bonitoes and others as raw material. A fish‚ particularly the head of fish‚ contains organic nitrogen (amino acids such as lysine‚ asparagine‚ glutamine‚ sertine‚ tyrosine‚ proline and the like)‚ nucleic acid‚
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Spring 2011 Introduction to C - Programming Assignment #5 Due date: Please consult WebCourses for your section Objectives 1. Learn how to design a program using functions. 2. Review of if statements and loops. Note: In this assignment‚ you are required to write one program. Problem: Universally Comical Funland Unified (ucf.c) Your internship with UCF has gone quite well so far. You’ve helped design software for many different areas of the park ranging from the roller coasters to the
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destruction is water pollution. These are the objectives of the group’s study: 1. to use the extract as component of ink 2. to use vinegar to strengthen the colour of the ink 3. can cornstarch contribute to achieving the right consistency of the ink C. Significance of the Study This investigatory project will benefit us by producing an alternative to other inks‚ specially the materials to be used in the group’s project are common and easy to find. Surely the people in China and Japan will benefit
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Determination vs. Discipline In the game of sports determination and discipline are the two key factors needed in order to succeed aside from team work. "The price of success is hard work‚ dedication to the job at hand‚ and the determination that whether we win or lose‚ we have applied the best of ourselves to the task at hand." Vince Lombardi. The world of athletics is filled with countless aspects and which the two strongest and most meaningful are determination and discipline. “The difference
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88‚ d = 11. (b) a = −29‚ d = 9 (c) a = 58237‚ d = 58168 (actual question is a = 58237‚ d = 58168 ) Solution: (a) Because 88 = 11・8 + 0‚ we have q = 8‚ r = 0. (The fact that r = 0 says that 11|88.) (b) Because −29 = 9・(−4) + 7‚ we have q = −4 and r = 7. (Note that although we can write −29 =9・(−3) + (−2)‚ we cannot use −2 as r because r is not allowed to be negative.) (c) a = d(q)+r 58237 = 58168(1) + 69 Quotient = 1‚ Remainder = 69 (c actual) We do not need to perform
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Abstract: The reaction used to determine the experimental rate law of is 2I-(aq) + H2O2(aq) I2(aq) + 2H2O2(l). The rate law determined experimentally is rate= k[I-]1.017[H2O2]0.927. Additionally by performing essentially the same experiments but with temperature changes one can determine how k is affected by temperature changes and the new activation energy. Also‚ from graphs the activation energy was determined to be 33.3 kJ/mol. INTRODUCTION: The rate of a chemical reaction often depends
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Acids and Bases Mirza Hasan Mammadov Acids and bases are really important in our daily day life. So let’s start with telling the definitions of them. Starting with acids‚ they are a substance which dissociates in water in order to produce one or more hydrogen ions. Also we can write H+ instead of hydrogen ion. Bases have the same definition‚ although the difference is that it firm hydroxide ions instead of hydrogen ions. We can write OH- instead of hydroxide ion. All alkali is bases but not
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Eric Wu 117 Experiment 1.6: Determination of Density Abstract: The purpose of the experiment was to determine if density is an intensive or extensive property of matter. The experiment proves that density is an intensive property. The density of an object remains the same no matter how much of it is present. The density is an intensive property because mass and volume changes at the same rate. Introduction: This experiment was designed to determine if density is an intensive or extensive
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