Preparation of an Acetic Acid Ester Abstract: 14.1 g of octyl acetate were synthesized from the esterification process using 20.0 ml of acetic acid and 17.9 g of n-octanol. The theoretical yield was 23.8 g of octyl acetate. The percent yield was 59.2%. The purification of the final ester was confirmed by boiling point (186-199°C) and infrared index (nD=1.419). It was a colorless liquid that had a slight fragrance of orange and indescribable chemicals. The Infrared spectra confirmed ester
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Subject: Experiment 23: Stereochemistry of the Addition of Bromine to trans-Cinnamic Acid Introduction/Abstract: The purpose of this experiment was to carry out the bromination of trans-cinnamic acid‚ to determine the stereochemistry of the dibromide product of 2‚3-dibromo-3-phenylpropanoic acid‚ and find out whether the reaction proceeds by the usual bromonium ion mechanism or some other mechanism. In this experiment trans-cinnamic acid was mixed with glacial acetic acid and stirred in which
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Vinegar as Alternative Battery An Investigatory Project Presented to The Faculty of the High School Department Surigao Education Center Km. 2‚ Surigao City _______________________________________________ In Partial Fulfillment of the Requirements in Physics IV _______________________________________________ By: Edradan‚ Dhaniel Jefferson Yaun‚ Mary Allyssa Concon‚ Leonel Galos‚ Jancirfil Jimena‚ Rimar Villarojo‚ Kerr March 2013 APPROVAL SHEET Vinegar as Alternative Battery Prepared &
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EXPERIMENT # 04 OBJECT: Determination of different inhibitors that inhibit the rate of Enzymatic Browning in different fruits and vegetable. REQUIREMENTS: ➢ Citric Acid (1% solution) ➢ Acetic Acid (1% solution) ➢ Ascorbic Acid (1% solution) ➢ Sugar (1%.Solution) ➢ Sodium chloride (1% solution) ➢ Sulfite salt (1% solution) ➢ Samples (Potato‚ Banana‚ Apple) Enzymatic Browning: Enzymatic browning (oxidative) is a reaction between oxygen and a phenolic
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Methodology A. Synthesis of D-Arabino-Hexulose Phenylosazone In a 50 mL quick-fit round bottom flask with a reflux condenser‚ dissolve 10 g cane sugar in a mixture of 20 mL glacial acetic acid. Boil mixture for 30 minutes. Add the phenylhydrazine solution through the condenser. Remove from the hot plate. Rinse with 5 mL of 1:1 mixture of water and glacial acetic acid to complete the transfer of phenylhydrazine. When a yellow solid emerges‚ swirl the mixture. Wrap a dry cloth around the flask
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1. Chelsea‚ who was worried that the products she had designed would be copied‚ chased away from her store would-be copiers equipped with spy cameras and sketch for drawing toy plans. According to the passage‚ which of the following statement(s) is/ are true? A. Chelsea trapped copiers sketching her products. B. Chelsea could not stop copiers sketching her products. C. Chelsea prevented copiers photographing her products. D. Chelsea had equipment stolen from her booth by copiers. 2. Most of
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55 Best Remedies For Women Under Breast Rashes: During the humid summers I am plagued with underarm rash and from time to time rash under my breasts. I mix one part cheap (milk of magnesia with no flavoring) and use this to cure any rash. I also apply a zinc oxide based baby diaper rash ointment to the areas affected by rash. It keeps me comfortable all during the hot weather. This is not a topic that is commonly discussed‚ but starting about this time of year many women begin suffering from a
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1.1.1 Galacturonic Acid Analysis (for Pectin Analysis) Defattening of Mango Peel Powder (Tunchaiyaphum et al.‚ 2013) 1. Weigh about 3 g sample and put into thimble of the soxhlet extractor. 2. Pour in 150 mL of absolute ethanol to the flask of the soxhlet extractor. 3. Extract at boiling temperature of ethanol for 4 hours. 4. Remove solid contents from the thimble. Set aside to dry. Acid Hydrolysis of MPP (Rehman et al.‚ 2004) 1. Mix defatted peel powder with water at pH 2.5 adjusted w/ 0.1 N H2SO4
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Treatment of Poison Ivy or Chicken Pox: Oatmeal has been used for thousands of years for treating eczema‚ poison ivy‚ insect bites and skin infections due to its anti-inflammatory‚ anti-oxidant and anti-itch properties. For relieving the itchiness caused by poison ivy or chicken pox or even sunburn‚ grind oats or oat flour into a fine powder and pour it into a cheese cloth. Tie it around the bath tub faucet and squeeze out water periodically to have a tepid bath. You can also rub the pouch on the
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www.ieltsbuddy.com - Free online IELTS Advice IELTS Food Additives Essay This food additives essay is basically an advantages and disadvantages essay. You need to be careful with the word ‘outweigh’ as this often confuses students. The word ‘outweigh’ can be placed in different ways in the sentence so rather than work it out‚ it is better to think of it simply as ‘are there more advantages or disadvantages Decide what you think there are more of and then state this in the thesis statement without
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