COLLEGE PHYSICS,V.2
COLLEGE PHYSICS,V.2
11th Edition
ISBN: 9781305965522
Author: SERWAY
Publisher: CENGAGE L
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Chapter 29, Problem 57AP
To determine

The activity of the sample after 48 h.

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A medical laboratory stock solution is prepared with an initial activity due to 24Na of 2.5 mCi/mL, and 10.0 mL of the stock solution is diluted at t0 = 0 to a working solution whose total volume is 250 mL. After 48 h, a 5.0 - mL sample of the working solution is monitored with a counter. What is the measured activity? Note: 1 mL = 1 milliliter.
A drug containing 9943Tc ( t1/2 = 6.05 h) is to be injected into a patient at 10:00 am. You are to prepare the sample 3.00 hours before the injection (at 7:00 am) with an activity of 3.53 μCi at the preparation time (7:00 am). What will be the activity of the sample at the time of the injection?A. 1.50 μCiB. 2.00 μCiC. 2.50 μCiD. 3.00 μCiE. 3.50 μCi
A 7. A saline solution of 24Na with an activity of 300 kBq is injected into the bloodstream of one patient. Ten hours later, the activity of one cubic centimeter of blood is 30 Bq. Calculate the patient's blood volume.

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COLLEGE PHYSICS,V.2

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