Chemical Principles in the Laboratory
11th Edition
ISBN:9781305264434
Author:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Publisher:Emil Slowinski, Wayne C. Wolsey, Robert Rossi
Chapter24: The Standardization Of A Basic Solution And The Determination Of The Molar Mass Of An Acid
Section: Chapter Questions
Problem 3ASA: A 0.3012g sample of an unknown monoprotic acid requires 24.13mL of 0.0944MNaOH for neutralization to...
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Question
![Distribution Coefficient - Please help write conclusions based
on results provided. Thank You!
Results
Equiv. wt. of acetic acid - 60.052 g/mol
a. Volume of base required for first titration
10.10 mL- 0.0101 L
b. Mass of acetic acid in the 10 mL aliquot
0.3033 g
c. Volume of base required for second titration
6.53 ml.
0.00653 L
d. Mass of acid left over in water layer
0.1961 g
e. Mass of acid in ethyl acetate after a single 10 mL extraction
0.1072 g
6.29 ml.- 0.00629 L
f. Volume of base required for third titration
0.1889 g
g. Mass of acid in water layer
0.1144 g
h. Mass of acid in ethyl acetate after two 5 mL extractions
Kp (single extraction) 0.55 versus Kp (double extraction) 0.61](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1dbdfee4-9fd4-485b-89fd-9eea7cd5c709%2F8bae95be-7422-4e5d-8fab-a062a67d121b%2F0rr8y1_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Distribution Coefficient - Please help write conclusions based
on results provided. Thank You!
Results
Equiv. wt. of acetic acid - 60.052 g/mol
a. Volume of base required for first titration
10.10 mL- 0.0101 L
b. Mass of acetic acid in the 10 mL aliquot
0.3033 g
c. Volume of base required for second titration
6.53 ml.
0.00653 L
d. Mass of acid left over in water layer
0.1961 g
e. Mass of acid in ethyl acetate after a single 10 mL extraction
0.1072 g
6.29 ml.- 0.00629 L
f. Volume of base required for third titration
0.1889 g
g. Mass of acid in water layer
0.1144 g
h. Mass of acid in ethyl acetate after two 5 mL extractions
Kp (single extraction) 0.55 versus Kp (double extraction) 0.61
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