The enthalpy change for the conversion of to is kJ/mol. (Nearest integer)

Given: , ,

Question

The enthalpy change for the conversion of  to  is   kJ/mol. (Nearest integer)

Given: , ,

Canvas Classes · Accepted Answer

Strategy:
 Use a Born-Haber cycle for the aqueous ion formation from the element. .

Step 1: Sum the steps
1. Dissociation of : .
2. Electron gain by : .
3. Hydration of : .

Step 2: Calculation
.
The magnitude is .

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