Answer
$509.5\ g$
Work Step by Step
Molality: $\Delta T_f\rightarrow m=-10^{\circ}C\div(1.85\times-1.86^{\circ}C/m)=2.90\ m$
Number of moles: $2.90\ mol/kg\times 3.0\ kg=8.72\ mol$
Mass: $8.72\ mol\times 58.44\ g/mol=509.5\ g$
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 13 Solutions and Their Behavior - Study Questions - Page 505b: 48
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