A Which of the following can most likely increase the yield of recrystallized benzoic acid? O a. The receiving flask from hot filtration does not contain a small amount of solvent. O b. The solution was filtered immediately after hot filtration. O c. A fluted filter paper was used during cold filtration. O d. Activated charcoal was not added to the solution. Which of the following statements regarding purification by recrystallization is FALSE? В i. Activated charcoal removes insoluble impurities ii. Water is the best recrystallization solvent for organic compounds ii. Slow cooling permits the exclusion of the solvent from the recrystallized solid O a. ii and ii O b. i only O c. i and ii O d. i, ii, and ii C A solution failed to undergo recrystallization. Which of the following steps may be taken to induce crystallization? O a. Adding a small piece of metal O b. Adding a small amount of solvent Oc. Adding a small amount of pure crystal O d. All of the other choices

A Which of the following can most likely increase the yield of recrystallized benzoic acid? O a. The receiving flask from hot filtration does not contain a small amount of solvent. O b. The solution was filtered immediately after hot filtration. O c. A fluted filter paper was used during cold filtration. O d. Activated charcoal was not added to the solution. Which of the following statements regarding purification by recrystallization is FALSE? В i. Activated charcoal removes insoluble impurities ii. Water is the best recrystallization solvent for organic compounds ii. Slow cooling permits the exclusion of the solvent from the recrystallized solid O a. ii and ii O b. i only O c. i and ii O d. i, ii, and ii C A solution failed to undergo recrystallization. Which of the following steps may be taken to induce crystallization? O a. Adding a small piece of metal O b. Adding a small amount of solvent Oc. Adding a small amount of pure crystal O d. All of the other choices

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter31: Introduction To Analytical Separations

Section: Chapter Questions

Problem 31.19QAP

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