Answer
0.00732%
Work Step by Step
1 ppm=$10^{-6}$
In mass fraction,
73.2 ppm=$ 73.2\times10^{-6}$
Weight percent= mass fraction$\times 100\%$
$=73.2\times10^{-6}\times100\%$
$=0.00732\%$
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 13 - The Chemistry of Solutes and Solutions - Questions for Review and Thought - Topical Questions - Page 605b: 35
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