Name: Citric acid Chemical Name: 2-hydroxypropane-1‚2‚3-tricarboxylic acid Chemical Formula: C6H8O7 Chemical Structure: pH: 4.18‚ 3.90‚ 3.57 Classification: Weak acid Uses: It is a natural preservative/conservative and is also used to add an acidic or sour taste to foods and drinks. It is also used mainly as an acidifier‚ as a flavoring‚ and as a chelating agent. Name: Vinegar acid Chemical Name: Acetic acid or ethanoic acid Chemical Formula: C2H4O2 Chemical Structure:
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October 9‚ 2013 Partner(s): Acetylsalicylic Acid Synthesis Theory. This experiment was carried out to see how the hydroxyl group on the benzene ring in salicylic acid reacts with acetic anhydride to form an ester‚ and to make aspirin. Synthesis of Acetylsalicylic Acid occurs by protonation of carbonyl (C=O) group‚ and a nucleophilic attack of OH on the acetic anhydride. The ferric chloride test and melting point were used to test the purity of the results. A hypothesized recovery rater of above
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Acetylsalicylic Acid was Discovered Acetylsalicylic Acid in its earliest form was a powder for the bark and leaves of the willow tree. Hippocrates‚ who lived sometime between 460 B.C. and 377 B.C‚ founded it. This “Miracle Drug” that was able to relieve pains was later looked into with further detail by Johann Buchner. He isolated a tiny amount of bitter tasting yellow‚ need- like crystals‚ and called salicin. By 1829 French Chemist Henri Leroux had improved the extraction procedure to obtain
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Essay March 28‚ 2014 ACID RAIN ENVIRONMENAL EFFECTS What is acid rain? It’s a rain or any other form of precipitation that is unusually acidic‚ meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants‚ aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide‚ which react with the water molecules in the atmosphere to produce acids. The most obvious environmental effect of acid rain has been the loss
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Properties of Acids and Bases Diagram: A B C D E F Bromothymol Blue Universal Indicator Phenolphthalein Litmus Paper Analyze: 1) F‚ C‚ D‚ B‚ A‚ E 2) D is neutral because it turned to the colour of green when it came in contact with the indicator Bromothymol Blue. The acid or base is green between 6.0-7.6 pH. 3) Solution E is more alkaline (more basic) than solution A because when E came into contact with the indicator Bromothymol Blue it turned
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on the subject lines. Multiple Choice: True/False (5-2) Compounding 1. F J Answer: aEASY Starting to invest early for retirement increases the benefits of compound interest. a. True b. False (5-2) Compounding 2. F J Answer: bEASY Starting to invest early for retirement reduces the benefits of compound interest. a. True b. False (5-2) Compounding 3. F J Answer: aEASY A time line is meaningful even if all cash flows do not occur annually. a. True b. False
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For our final essay‚ we are given two articles in order to examine and compare with one another. The first of the two selections is “Separating” by John Updike. The second piece of reading is entitled “Everyday Use” by Alice Walker. Both articles were written in the early 1970s‚ and are both from the short story genre; However‚ both authors had different ways of thinking and expressing themselves due to their differences in age‚ gender‚ ethnicity‚ race‚ and personal influences. Nevertheless‚ during
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Naming Chemical Compounds PART A Name the following 1 S Sulfur 2 Sb Antimony 3 N2 Dinitrogen 4 PO43- Phosphate 5 Au Gold 6 Rb Rubidium 7 LiCl Lithium Cloride 8 AlBr3 Aluminum (III) Bromide 9 KMnO4 Potassium Manganate (VII) 10 Cu(OH)2 Copper (II) Hydroxide 11 FeSO4 Iron (II) Sulfate 12 NH4Cl Ammonium Chloride 13 ZnCO3 Zinc Carbonate 14 SnF2 Tin (II)Fluoride 15 MgSO4 Magnesium Sulfate 16 MnO2 Manganese (IV) Oxide 17 Ca3(PO4)2 Tricalcium Phosphate 18 NaOH Sodium Hydroxide
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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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Acid-Base Strengths of Organic Compounds By: Chris Frankmore Due Date: February 15‚ 2011 Resonance Benzenesulfonic Acid Benzoic Acid Benzyl Alcohol Benzylamine P-Cresol P-Toluidine Acid/Base | Structure | pH | Why It is a strong/weak acid/base | Benzenesulfonic Acid | | 1 | This is a strong acid because it has a pH of 1. Another reason why this is a strong acid is that its conjugate base has strong resonance stabilization
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