Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Hi, i dont understand the steps here. Could you rewrite this in a more simple manner so i could understand better.
Thanks
Transcribed Image Text:"seaas
The aim of this experiment was investigating and determining the effect of the pH of a
solution on the distribution coefficient of a drug, in this case benzoic acid. In order to carry
out this investigation, a pre-prepared 0.001998 mol dm stock solution of benzoic acid in
ethyl acetate was used to prepare standard solutions of varying concentrations whose
absorbances were measured to produce a calibration plot. A biphasic liquid of stock solution
and pH 6.0 buffer was produced and the absorbance was then recorded and used to
calculate the distribution coefficient of benzoic acid at this pH. The orocess then repeated,
using pH 7.0 buffer.
nt 70 buffer sotution
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