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Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Carboxylic Acids, Salts, and Esters - Lab Report Sheet Experimental Procedure A. Solubility and Salt Formation Obtain 4 clean test tubes. Test tube 1 - Place approximately 5mL of distilled water and 1mL of acetic acid Test tube 2 - Place approximately 5mL of distilled water and 1mL of oleic acid Test tube 3 - Place approximately 5mL of 1M NaOH and 1mL of acetic acid Test tube 4 - Place approximately 5mL of 1M NaOH and 1mL of oleic acid Shake well. Record your observations. Note: since oleic acid is a long chain carboxylic acid, you may need to add excess of NaOH solution to observe the solubility. You should observe foams due to formation of sodium oleate (soap) Compound Water NaOH Acetic acid soluble Oleic acid insoluble Complete the following reactions and name the organic salts formed in the reactions. (Acid salts are named by replacing the "-ic acid" ending of the acid name by "-ate" and naming the cation first): NaOH HO, a. + NaOH ОН b. 1 CHEL 114 – Session 11 – Lab report Sheet Khan, Rajpara, Heidary - 8/2020
Transcribed Image Text:Carboxylic Acids, Salts, and Esters - Lab Report Sheet Experimental Procedure A. Solubility and Salt Formation Obtain 4 clean test tubes. Test tube 1 - Place approximately 5mL of distilled water and 1mL of acetic acid Test tube 2 - Place approximately 5mL of distilled water and 1mL of oleic acid Test tube 3 - Place approximately 5mL of 1M NaOH and 1mL of acetic acid Test tube 4 - Place approximately 5mL of 1M NaOH and 1mL of oleic acid Shake well. Record your observations. Note: since oleic acid is a long chain carboxylic acid, you may need to add excess of NaOH solution to observe the solubility. You should observe foams due to formation of sodium oleate (soap) Compound Water NaOH Acetic acid soluble Oleic acid insoluble Complete the following reactions and name the organic salts formed in the reactions. (Acid salts are named by replacing the "-ic acid" ending of the acid name by "-ate" and naming the cation first): NaOH HO, a. + NaOH ОН b. 1 CHEL 114 – Session 11 – Lab report Sheet Khan, Rajpara, Heidary - 8/2020
В. Esters Set up a boiling water bath. Prepare two esters using a combination of an alcohol and a carboxylic acid from the list below. Alcohols Carboxylic Acids isoamyl alcohol / 3-methyl-1-butanol ethanoic acid / acetic acid, methyl alcohol / methanol salicylic acid Note and record the odors of each individual reactant used. To prepare the ester, put the acid and corresponding alcohol into one labeled test tube and mix well. If the reactant is a liquid, use approximately 3 mL. If the reactant is a solid, use approximately 1 gram (small scoop). Carefully add 10-12 drops of conc. H2SO4 (CAUTION!) to the test tube which acts as a catalyst. Gently mix and place the test tube in a boiling water bath for 10 - 15 minutes. Prepare 2 small beaker half filled with distilled water. Remove the test tubes, and pour the hot solution in each separate beaker. Immediately, fan the vapor and record your observation. Name of Reactants Odor of Reactants Odor of Product(ester) Carboxylic acid: acetic acid vinegar Alcohol: isoamyl alcohol Name of Reactants Odor of Reactants Odor of Product Carboxylic acid: Alcohol: 2 CHEL 114 – Session 11 – Lab Report sheet Khan, Rajpara, Heidary - 8/2020
Transcribed Image Text:В. Esters Set up a boiling water bath. Prepare two esters using a combination of an alcohol and a carboxylic acid from the list below. Alcohols Carboxylic Acids isoamyl alcohol / 3-methyl-1-butanol ethanoic acid / acetic acid, methyl alcohol / methanol salicylic acid Note and record the odors of each individual reactant used. To prepare the ester, put the acid and corresponding alcohol into one labeled test tube and mix well. If the reactant is a liquid, use approximately 3 mL. If the reactant is a solid, use approximately 1 gram (small scoop). Carefully add 10-12 drops of conc. H2SO4 (CAUTION!) to the test tube which acts as a catalyst. Gently mix and place the test tube in a boiling water bath for 10 - 15 minutes. Prepare 2 small beaker half filled with distilled water. Remove the test tubes, and pour the hot solution in each separate beaker. Immediately, fan the vapor and record your observation. Name of Reactants Odor of Reactants Odor of Product(ester) Carboxylic acid: acetic acid vinegar Alcohol: isoamyl alcohol Name of Reactants Odor of Reactants Odor of Product Carboxylic acid: Alcohol: 2 CHEL 114 – Session 11 – Lab Report sheet Khan, Rajpara, Heidary - 8/2020
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