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In recrystallization from boiling water of benzoic acid contaminated with acetanilide, you begin with an impure sample o
Posted: Wed May 18, 2022 10:25 am
by answerhappygod
- In Recrystallization From Boiling Water Of Benzoic Acid Contaminated With Acetanilide You Begin With An Impure Sample O 1 (39.99 KiB) Viewed 102 times
In recrystallization from boiling water of benzoic acid contaminated with acetanilide, you begin with an impure sample of 4.7 grams. The % composition of the acetanilide impurity in the sample is 1.5 %. The solubility profile of benzoic acid and acetanilide in water is outlined below. Use this information to answer questions 16-18. Compound Solubility in water at 25°C Solubility in water at 100°C Benzoic Acid 0.34 g/100ml 5.6 g/100ml Acetanilide 0.53 g/100ml 5.5g/100 ml 16. Determine through calculation) the minimum amount of solvent (water) required for this recrystallization? A 1382 mi B. 86 ml C. 887 ml D84 m E 75 ml 17. Calculate the maximum amount in grams of acetanilide impurity that would dissolve in the minimum amount of solvent at 25 °C. A 0.538 B. 0.07 8 0.45 8 D. 5.50 8 E 4.628 18. Determine the expected (ideal) % recovery of benzoic acid after the recrystallization process, A 100% B. 87 % 94 D. 92% E. 97 %