Q2. You want to purify 10 grams of benzoic acid that has been contaminated with 0.2 g of salicylic acid. You are given the following data: Compound Solubility in water at 20 °C |(g/10 ml) Solubility at 100 °C (g/10 ml) Benzoic Acid 0.029 0.680 Salicylic Acid 0.029 0.22 0.680 6.67 a) What volume of Boiling water is needed to dissolve the 10 g of benzoic acid? (show calculations) b) How much benzoic acid will crystallize after cooling to 20 °C (show calculations) c) Will any salicylic acid crystals form? Why or why not? (show calculations/ reason for answer)
Q2. You want to purify 10 grams of benzoic acid that has been contaminated with 0.2 g of salicylic acid. You are given the following data: Compound Solubility in water at 20 °C |(g/10 ml) Solubility at 100 °C (g/10 ml) Benzoic Acid 0.029 0.680 Salicylic Acid 0.029 0.22 0.680 6.67 a) What volume of Boiling water is needed to dissolve the 10 g of benzoic acid? (show calculations) b) How much benzoic acid will crystallize after cooling to 20 °C (show calculations) c) Will any salicylic acid crystals form? Why or why not? (show calculations/ reason for answer)
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter10: Properties Of Solutions
Section: Chapter Questions
Problem 31E: Common commercial acids and bases are aqueous solutions with the following properties: Density...
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![Q2. You want to purify 10 grams of benzoic acid that has been contaminated with 0.2 g
of salicylic acid. You are given the following data:
Solubility in water at 20 °C Solubility at 100 °C
(g/10 ml)
Compound
(g/10 ml)
Benzoic Acid 0.029 0.680
Salicylic Acid
0.029
0.22
0.680
6.67
a) What volume of Boiling water is needed to dissolve the 10 g of benzoic acid?
(show calculations)
b) How much benzoic acid will crystallize after cooling to 20 °C (show calculations)
c) Will any salicylic acid crystals form? Why or why not? (show calculations/ reason for
answer)
d) What is the maximum amount of benzoic acid that could be recovered in the first
crop of this recrystallization? (Show calculations)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F41d98fdd-fe97-4c2d-83c3-c7a1ca933d1c%2Febd6bb89-036b-407f-bcd1-27d7a3d0596a%2Fn5x4h68_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q2. You want to purify 10 grams of benzoic acid that has been contaminated with 0.2 g
of salicylic acid. You are given the following data:
Solubility in water at 20 °C Solubility at 100 °C
(g/10 ml)
Compound
(g/10 ml)
Benzoic Acid 0.029 0.680
Salicylic Acid
0.029
0.22
0.680
6.67
a) What volume of Boiling water is needed to dissolve the 10 g of benzoic acid?
(show calculations)
b) How much benzoic acid will crystallize after cooling to 20 °C (show calculations)
c) Will any salicylic acid crystals form? Why or why not? (show calculations/ reason for
answer)
d) What is the maximum amount of benzoic acid that could be recovered in the first
crop of this recrystallization? (Show calculations)
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