1. If all the impurities in a certain sample are soluble in the solvent being used, would it be necessary to do a hot filtration? Explain why or why not. 2. Use the following solubility data to answer all parts of this question. You can assume that the presence of one compound in solution does not affect or change the solubility of another compound in that same solution. Compound Benzoic acid Impurity Solubility in water at 25°C 0.34 grams per 100 mL of water 0.50 grams per 100 mL of water A. Will 5.7 grams of benzoic acid dissolve in 100 mL of water at 95°C? B. If 4.50 grams of benzoic acid are dissolved in 100 mL of hot water and then allowed to cool to 25°C followed by vacuum filtration, how many grams of benzoic acid crystals would be obtained? Show your work. Solubility in water at 95°C 6.81 grams per 100 mL of water 4.25 grams per 100 mL of water What percentage of the original benzoic acid sample is this? In other words, what is your percent recovery of benzoic acid crystals? Show your work. I to 224

1. If all the impurities in a certain sample are soluble in the solvent being used, would it be necessary to do a hot filtration? Explain why or why not. 2. Use the following solubility data to answer all parts of this question. You can assume that the presence of one compound in solution does not affect or change the solubility of another compound in that same solution. Compound Benzoic acid Impurity Solubility in water at 25°C 0.34 grams per 100 mL of water 0.50 grams per 100 mL of water A. Will 5.7 grams of benzoic acid dissolve in 100 mL of water at 95°C? B. If 4.50 grams of benzoic acid are dissolved in 100 mL of hot water and then allowed to cool to 25°C followed by vacuum filtration, how many grams of benzoic acid crystals would be obtained? Show your work. Solubility in water at 95°C 6.81 grams per 100 mL of water 4.25 grams per 100 mL of water What percentage of the original benzoic acid sample is this? In other words, what is your percent recovery of benzoic acid crystals? Show your work. I to 224

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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