Water has a molal freezing point constant of 1.86°C kg/mol. Calculate the freezing point of 37.378 grams of calcium chloride (CaCl2) in 116.149 grams of water. Assume complete dissociation.
Water has a molal freezing point constant of 1.86°C kg/mol. Calculate the freezing point of 37.378 grams of calcium chloride (CaCl2) in 116.149 grams of water. Assume complete dissociation.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 53QRT
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Water has a molal freezing point constant of 1.86°C kg/mol. Calculate the freezing point of 37.378 grams of calcium chloride (CaCl2) in 116.149 grams of water. Assume complete dissociation.
Expert Solution
Step 1
Given
molal freezing point constant of water = 1.86℃ kg/mole
Mass of CaCl2 = 37.378 gram
Mass of Solvent(water) = 116.149 gram
= 116.149 × 10-3 kg
= 0.116149 kg
Freezing point of mixture = ?
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