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Author Question: The boiling point of an aqueous 1.83 mol kg-1 (NH4)2SO4 (molar mass = 132.15 g mol-1) solution is ... (Read 130 times)

Medesa

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on: Nov 18, 2019

Question 1

Choose the aqueous solution below with the highest freezing point. These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable.
◦ 0.200 mol kg-1 Ca(ClO4)2
◦ 0.200 mol kg-1 Ba(NO3)2
◦ 0.200 mol kg-1 K3PO3
◦ 0.200 mol kg-1 HOCH2CH2OH
◦ These all have the same freezing point.

Question 2

The boiling point of an aqueous 1.83 mol kg-1 (NH4)2SO4 (molar mass = 132.15 g mol-1) solution is 102.5 °C. Determine the value of the van't Hoff factor for this solute if the Kb for water is 0.512 °C m-1.
◦ 1.8
◦ 2.7
◦ 3.0
◦ 3.6
◦ 2.3
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
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Marked as best answer by Medesa on Nov 18, 2019

ecox1012

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Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Medesa

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Reply 2 on: Nov 18, 2019
Excellent

carojassy25

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Reply 3 on: Yesterday
Gracias!

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