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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
30 Oct 2021

Given information

The solution is given to become colder when ammonium chloride was dissolved in water.
Therefore, based on the given information the question needs to be answered.

Step-by-step explanation

Step 1.
The heat of solution is the sum of enthalpy of solute and enthalpy of hydration.
It is calculated by the formula,  

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