How did the amount of Sodium Citrate‚ an anticoagulant‚ added to a Calcium Chloride solution affect the volume of the clots formed when a sodium alginate solution‚ a blood simulation‚ was introduced? Mackenzie Keesor (Fall Semester 2017-2018) Purpose The purpose of this experiment was to observe the differences in the formation of simulated blood clots when different amounts of sodium citrate‚ an anticoagulant‚ was added to the coagulation process‚ which would help gain information about the process
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experiment‚ the methyl nitrobenzoate was prepared from methyl benzoate‚ concentrated HNO3‚ and concentrated H2SO4 via an electrophilic aromatic substitution reaction. The HNO3 and H2SO4 were combined to form a nitrating solution‚ which was mixed with a mixture of methyl benzoate and H2SO4. Percent yield for the final product was calculated followed by recrystallization and melting point was measured. Introduction: Nitration of Methyl Benzoate is one of the examples of Electrophilic aromatic substitutions
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FACULTY OF HEALTH SCIENCES THE EFFECTS OF EATING FAST FOODS NAME : NOR AZWANNIS BINTI FAHROLROZI (2009680788) NORMALIZA BINTI ZAMAN (2009605054) COURSE : DIPLOMA in NURSING (HS110-3C) SUBJECT : ENGLISH FOR ACADEMIC PURPOSES CODE : BEL 311 (FIRST DRAFT) LECTURER’S : MDM. JEBA EBENEZER DUE DATE : 16th AUGUST 2010 Fast food refers about food such as hamburgers which is prepared quickly and that you can take away with you (Longman Contemporary English‚ p. 574). It is served at a counter
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Buffers‚ and pH‚ and Diffusion oh my The pH of a solution is the measure of the concentration of charged Hydrogen ions in that given solution. A solution with a pH lower than seven is considered to be acidic. A solution with a higher pH is a base. It is very important for organisms to maintain a stable pH. Biological molecules such as proteins function only at a certain pH level and any changes in pH can result in them not functioning properly. To maintain these constant pH levels‚ buffer solutions
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Nitration of Methyl Benzoate to form Methyl-m-nitrobenzoate via Aromatic Substitution Linh Ngoc Thuy Nguyen Seattle Central Community College Professor: Dr. Esmaeel Naeemi Date: February 21st‚ 2012 Abstract In this experiment‚ methyl-m-nitrobenzoate‚ followed the electrophilic addition of aromatic ring‚ would be formed from the starting material methyl benzoate and nitric acid‚ under the catalysis of concentrated sulfuric acid. The reaction between nitric acid and sulfuric acid resulted
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Introduction The purpose of this experiment is to synthesize methyl nitrobenzoate from methyl benzoate‚ concentrated HNO3‚ and concentrated H2SO4 via an electrophilic aromatic substitution reaction. Reaction Procedures/ Observations Use a 50 ml beaker to cool about 6 ml of concentrated sulfuric acid in an ice water bath. Weigh the vial containing about 3 grams of methyl benzoate and add it to the cooled sulfuric acid. Next pour about 2 ml of sulfuric acid to the nitric acid in the vial
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Esterification and Hydrolysis: Methyl Benzoate by Fisher Esterification Nitration of Methyl Benzoate Jingling Li 2/16/2014 Purpose of the experiment: To understand the mechanisms for Fisher esterification reactions as an equilibrium process and hydrolysis is the reversal reaction of esterification. Nitrate methyl benzoate by an electrophilic aromatic substitution reaction. Summary of procedures: Add sulfuric acid to the mixture of benzoic and methanol‚ heat up the mixture to 65 oC
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The Effects of Junk Food on Health Junk foods are deemed to be trash foods as they are high in fat‚ sodium and sugar. The apparent effect of junk food can lead to obesity and a range of attendant health problems‚ including diabetes‚ heart disease and arthritis. Majority of junk food choices do not deliver beneficial nutritional values. Here are the facts about how excessive junk food consumption affects your body. First of all‚ junk food doesn’t contain the nutrients your body needs to stay
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Red Cabbage Indicator Aim – To create a pH indicator out of a red cabbage solution and to construct a basic pH scale to determine the pH of unknown solutions. Materials - • red cabbage leaves • 250 mL beaker • hotplate or Bunsen burner‚ tripod‚ gauze mat and bench mat • 10 test-tubes – equal size • test-tube rack Methods - Part A: Making the indicator 1. Tear up one or two red cabbage leaves‚ and place them in the beaker with enough water so that the cabbage is just covered. 2. Heat the beaker
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The Effects of pH on Slime Mold Dg Nicole Harris BIOL181 – 059 1 December 2011 The theory that slime mold is attracted to acidic solutions was examined by the slime mold‚ Dg. Dg’s preference of pH was examined by using a variety of pH solutions in a petri dish. The data suggests that the growth of fruiting bodies observed in pH 9 was comparable to that of pH 4. INTRODUCTION The 2002 scientific journal‚ “The Costs and Benefits
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