Given the enthalpy of fusion of water is 6.1 kJ/mol and water normally freezes at 273K. calculate the number of moles/kg water of NaCl or CaCl₂ needed to low the freezing temperature of water by 10 degree.

Given the enthalpy of fusion of water is 6.1 kJ/mol and water normally freezes at 273K. calculate the number of moles/kg water of NaCl or CaCl₂ needed to low the freezing temperature of water by 10 degree.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter16: Spontaneity Of Reaction

Section: Chapter Questions

Problem 93QAP

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Given the enthalpy of fusion of water
is 6.1 kJ/mol and water normally
freezes at 273K. calculate the number
of moles/kg water of NaCl or CaCl₂
needed to low the freezing
temperature of water by 10 degree.

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