Answered: A person consumes 100 micrograms of a…

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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Question

A person consumes 100 micrograms of a tracer chemical. Assume that the person is able to collect all
of the tracer in their urine (and therefore measure the amount that has come out of the body), as well
as the concentration in the blood, as a function of time (see table below).
a Is a first-order rate constant appropriate for describing the process of elimination via the kidneys?
Justify your answer.
b Assuming that the answer to a is ”yes,” find the rate constant k and the total blood volume V from
these data.
c is the value of V that you determined equal to the blood volume of the person? Does this make
sense to you? If not, what does V represent?

Time (h)
Amount collected in urine
Concentration in
during the previous hour (ug) the blood (ug/L)
1
9.4
90
8.7
82
3
7.9
75
4
6.9
66
6.5
61
5.7
55
7
5
50
8.
4.9
43
9
4.3
39
10
3.9
35

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