Calculate the standard free energy change for the following reaction
`Zn(s) + Cu^(2+)(aq) to Zn^(2+) (aq) + Cu(s)`
Given : `Delta_fG^@ [Cu^(2+)(aq)] = 65.0kJ mol^(-1)`
`Delta_f G^@ [ Zn^(2+) (aq)] = -147.2 kJ mol^(-1)`

Explanation

To calculate the standard free energy change (ΔG°) for the reaction:

\[ \text{Zn(s)} + \text{Cu}^{2+}(aq) \rightarrow \text{Zn}^{2+}(aq) + \text{Cu(s)} \]

we will use the following formula:

\[ \Delta G^\circ = \sum \Delta G^\circ_f \text{(products)} - \sum \Delta G^\circ_f \text{(reactants)} \]

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