Author Question: Calculate the freezing point of a solution containing 5.0 grams of KCl and 550.0 grams of water. The ... (Read 164 times)

cdr_15 · **on:** Nov 18, 2019

Question 1

A solution is prepared by dissolving 21.0 g of glycerin (C₃H₈O₃) in 201 g of ethanol

The freezing point of the solution is ________°C. The freezing point of pure ethanol is

. The molal freezing point depression constant (K_f) for ethanol is

The molar masses of glycerin and of ethanol are 92.1 g mol-1 and 46.1 g mol-1, respectively.
◦ -116.4
◦ -112.3
◦ -116.9
◦ 2.26
◦ -112.8

Question 2

Calculate the freezing point of a solution containing 5.0 grams of KCl and 550.0 grams of water. The molal freezing point depression constant (K_f) for water is

◦ +0.45 °C
◦ 1.23 °C
◦ -0.23 °C
◦ +0.23 °C
◦ -0.45 °C

huda · **Reply #1 on:** Nov 18, 2019

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