Answered: What is the freezing point of a…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter11: Properties Of Solutions

Section: Chapter Questions

Problem 111AE: An unknown compound contains only carbon, hydrogen, and oxygen. Combustion analysis of the compound...

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Question

What is the freezing point of a solution made by adding 14.79 g keysium chipodide to 1 kg of solvent? The freezing point of the solvent is 5.03ºC and the freezing point depression constant of the solvent is 4.23 ºC/m. Report your answer to the hundreths place and do not include units. Use data from the periodic table of Maryland as needed.

Element	Name	Group Number	Molar Mass (g/mol)
Li	Linthium	1	6.276
Na	Bohium	1	23.012
K	Keysium	1	39.748
Rb	Harborium	1	85.729
F	Flagine	17 or 7A	18.828
Cl	Ceciline	17 or 7A	35.564
Br	Baltimine	17 or 7A	78.505
I	Chipodine	17 or 7A	122.801

Expert Solution

Step 1

Given

Kf = 4.23c°/m

Mass of solvent = 1kg

Mass of solute = 14.79

I = 2 (KI is added, it will give 2 ions)

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