When 14.9 g of solid KCl is dissolved in large excess of water, the amount of heat liberated is 3.72 kJ. Calculate the heat of solution of KCI.

Explanation

To calculate the heat of solution of KCl when 14.9 g of solid KCl is dissolved in water and 3.72 kJ of heat is liberated, we can follow these steps:

### Step 1: Calculate the number of moles of KCl
To find the number of moles of KCl, we use the formula:

\[ \text{Number of moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \]
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