3 You wish to undertake a 90 step countercurrent extraction of solutes A & B with distributioncoefficients DA= 1.4 & DB = 0.8. Suppose the volumes of mobile and stationary are equal. Iffractions 33-46 and 47-60 are each pooled find the % recovery and purity of each solute.O A. A: 82.6% recovery of 92.3% pure AB: 82.9% recovery of 91.0% pure BO B. A: 81.8% recovery of 98.0 % pure AB: 83.9% recovery of 97.1 % pure BO C. A: 79.8% recovery of 99.7% pure AB: 82.0% recovery of 86.6% pure BD. A: 92.6% recovery of 99.5% pure A

Assuming volumes in Stationary and Mobile phase equal (According to question)

Answered: & DB = 0.8. Sup 47-60 are each

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Chemistry

& DB = 0.8. Sup 47-60 are each

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 80AP

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Question

You wish to undertake a 90 step countercurrent extraction of solutes A & B with distribution
coefficients DA= 1.4 & DB = 0.8. Suppose the volumes of mobile and stationary are equal. If
fractions 33-46 and 47-60 are each pooled find the % recovery and purity of each solute.
O A. A: 82.6% recovery of 92.3% pure A
B: 82.9% recovery of 91.0% pure B
O B. A: 81.8% recovery of 98.0 % pure A
B: 83.9% recovery of 97.1 % pure B
O C. A: 79.8% recovery of 99.7% pure A
B: 82.0% recovery of 86.6% pure B
D. A: 92.6% recovery of 99.5% pure A

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