Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 2 - Chemical Compounds - Questions for Review and Thought - Topical Questions - Page 90d: 85a


$1.80\times10^{-3}\,mol\text{ aspirin}$ $2.266\times10^{-2}\,mol\,NaHCO_{3}$ $5\times10^{-3}\,mol\text{ citric acid}$

Work Step by Step

Amount of aspirin= $324\times10^{-3}\,g\text{ aspirin}\times\frac{1\,mol\,\text{aspirin}}{180.158\,g\text{ aspirin}}$ $=1.80\times10^{-3}\,mol\text{ aspirin}$ Amount of $NaHCO_{3}$= $1904\times10^{-3}\,g\,NaHCO_{3}\times\frac{1\,mol\,NaHCO_{3}}{84.007\,g\,NaHCO_{3}}$ $=2.266\times10^{-2}\,mol\,NaHCO_{3}$ Amount of citric acid= $1000\times10^{-3}\,g\text{ citric acid}\times\frac{1\,mol\,\text{citric acid}}{192.124\,g\text{ citric acid}}$ $=5\times10^{-3}\,mol\text{ citric acid}$
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