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 - 13-5 Colloids - Applying Chemical Principles - Questions - Page 502: 3

Answer

$17.7\%$

Work Step by Step

For 1 mol of mixture: $0.20\ mol\ hexane \times 86.178\ g/mol=17.24\ g$ $0.80\ mol\ hexane \times 86.178\ g/mol=80.16\ g$ Mass fraction of hexane: $\dfrac{17.24}{17.24+80.16}=0.177\ or\ 17.7\%$
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