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Author Question: The molar mass of a solid as determined by freezing point depression is 10% higher than the true ... (Read 87 times)

jessicacav

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on: Mar 21, 2021

Question 1

The lattice energy of CsCl is 657.0 kJ/mol and its heat of solution is 17.8 kJ/mol. Calculate the hydration of energy of CsCl(s).

◦ 35.6 kJ/mol
◦ –674.8 kJ/mol
◦ –639.2 kJ/mol
◦ 674.8 kJ/mol
◦ 639.2 kJ/mol

Question 2

The molar mass of a solid as determined by freezing point depression is 10% higher than the true molar mass. Which of the following experimental errors could not account for this discrepancy?

◦ Not all the solid was dissolved.
◦ More than the recorded amount of solvent was pipetted into the solution.
◦ The solid dissociated slightly into two particles when it dissolved.
◦ Some solid was left on the weighing paper.
◦ Before the solution was prepared, the container was rinsed with solvent and not dried.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by jessicacav on Mar 21, 2021

Joy Chen

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Reply #1 on: Mar 21, 2021
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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jessicacav

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Reply 2 on: Mar 21, 2021
Great answer, keep it coming :)

sultansheikh

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Reply 3 on: Yesterday
Gracias!

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