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Problem 57 Easy Difficulty

A medical laboratory stock solution is prepared with an initial activity due to $^{24} \mathrm{Na}$ of 2.5 $\mathrm{mCi} / \mathrm{mL}$ , and 10.0 $\mathrm{mL}$ of the stock solution is diluted at $t_{0}=0$ 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 5 1 milliliter.

Answer

5.4 \times 10^{-5} C i

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Top Physics 103 Educators
LB
Liev B.

Numerade Educator

Zachary M.

Hope College

Jared E.

University of Winnipeg

Meghan M.

McMaster University

Video Transcript

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Karakorum international University
Top Physics 103 Educators
LB
Liev B.

Numerade Educator

Zachary M.

Hope College

Jared E.

University of Winnipeg

Meghan M.

McMaster University