Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 13 Solutions and Their Behavior - Study Questions - Page 505: 9


a) $10.17\ m$ b) $37.08\%$

Work Step by Step

a) In 1 liter of solution: $12.0\ M\times 1.0\ L=12.0\ mol$ Mass of solution: $1.0\ L\times 1.18\ g/cm^3\times 1000\ cm^3/L=1180\ g=1.18\ kg$ Molality of solution: $12.0\ mol\div 1.18\ kg=10.17\ m$ b) Mass of HCl: $12.0\ mol\times36.46\ g/mol=437.52\ g$ Weight percent: $437.52\div 1180\times 100\%=37.08\%$
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