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Consider the product form during the experiment a. Mention two experiments that you can conduct inorder to determine whether the product is what you claim it to be b. Deduce a simple experimental procedure for each experiment mentioned in (a). Your answer should be in point form, easy to follow and concise

Consider the product form during the experiment a. Mention two experiments that you can conduct inorder to determine whether the product is what you claim it to be b. Deduce a simple experimental procedure for each experiment mentioned in (a). Your answer should be in point form, easy to follow and concise

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Consider the product form during the experiment a. Mention two experiments that you can conduct inorder to determine whether the product is what you claim it to be b. Deduce a simple experimental procedure for each experiment mentioned in (a). Your answer should be in point form, easy to follow and concise 2 deduce a suitable conclusion for the experiment
Transcribed Image Text:Consider the product form during the experiment a. Mention two experiments that you can conduct inorder to determine whether the product is what you claim it to be b. Deduce a simple experimental procedure for each experiment mentioned in (a). Your answer should be in point form, easy to follow and concise 2 deduce a suitable conclusion for the experiment
09:34 ( HPSG032 Introduction Aspirin is the common name for the compound acetylsalicylic acid, widely used as a fever reducer and as a pain killer. Salicylic acid, whose name comes from Salix, the willow family of plants, was derived from willow bark extracts. In folk medicine, willow bark teas were used as headache remedies and other tonics. Nowadays, salicylic acid is administered in the form of aspirin which is less irritating to the stomach than salicylic acid. To prepare aspirin, salicylic acid is reacted with an excess of acetic anhydride. small amount of a strong acid is used as a catalyst which speeds up the reaction. In this experiment, phosphoric acid will be used as the catalyst. The excess acetic acid will be quenched with the addition of water. The aspirin product is not very soluble in water so the aspirin product will precipitate when water is added. The synthesis reaction of aspirin is shown below: Alulii ad Procedure 1) Mix salicylic acid and acetic anhydride in a 125 ml Erlenmeyer flask, add 5drops of H2SO4. 2) Heat on steam bath for 10 min, then cool. 3) Add 50 ml water and cool on ice. 4) collect product by vacuum filtration 5) Air dry the crude product crystals Data and observations Crude product + watch glass = 32.02 g Watch glass = 30.10 g During mixing, the addition of sulphuric acid caused some fizzing After addition of water and cooling, no crystals appeared, thus it was placed on ice for more than 10 min and crystals appeared
Transcribed Image Text:09:34 ( HPSG032 Introduction Aspirin is the common name for the compound acetylsalicylic acid, widely used as a fever reducer and as a pain killer. Salicylic acid, whose name comes from Salix, the willow family of plants, was derived from willow bark extracts. In folk medicine, willow bark teas were used as headache remedies and other tonics. Nowadays, salicylic acid is administered in the form of aspirin which is less irritating to the stomach than salicylic acid. To prepare aspirin, salicylic acid is reacted with an excess of acetic anhydride. small amount of a strong acid is used as a catalyst which speeds up the reaction. In this experiment, phosphoric acid will be used as the catalyst. The excess acetic acid will be quenched with the addition of water. The aspirin product is not very soluble in water so the aspirin product will precipitate when water is added. The synthesis reaction of aspirin is shown below: Alulii ad Procedure 1) Mix salicylic acid and acetic anhydride in a 125 ml Erlenmeyer flask, add 5drops of H2SO4. 2) Heat on steam bath for 10 min, then cool. 3) Add 50 ml water and cool on ice. 4) collect product by vacuum filtration 5) Air dry the crude product crystals Data and observations Crude product + watch glass = 32.02 g Watch glass = 30.10 g During mixing, the addition of sulphuric acid caused some fizzing After addition of water and cooling, no crystals appeared, thus it was placed on ice for more than 10 min and crystals appeared
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