Chemistry: The Molecular Science (5th Edition)

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 605c: 59d


Mass fraction= 0.0745 Weight percent= 7.45%

Work Step by Step

Mass of ethylene glycol= density$\times$ volume= $1.11 g/mL\times14.5 mL=16.1 \,g$ Mass fraction of ethylene glycol= $\frac{mass\, of\, ethylene\, glycol}{mass\,of\, ethylene\, glycol+mass\,of\,H_{2}O}=\frac{16.1\,g}{16.1\,g+200\,g}$ $=0.0745$ Weight percent= mass fraction$\times100\%$ $=0.0745\times100\%=7.45\%$
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