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 505b: 33


See the answer below.

Work Step by Step

a) Freezing point depression: $-16°C$ Molality: $\Delta T_f=K_fm\rightarrow -16=-1.86m\rightarrow m=8.60\ m$ b) For 1 kg of water: $1\ kg\times 8.60\ m=8.60\ mol$ of ethanol Mass of solute: $8.60\ mol\times 46.07\ g/mol=396.30\ g$ Weight percent: $396.6/(1000+396.3)\times100\%=0.29$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.