Use standard reduction potentials to calculate the standard free energy change in kJ for the reaction:

Hg²+ (aq) + Ni(s) → Hg(s) + Ni²+ (aq)

2+

Hg²+ (aq) + 2e¯ → Hg(s) Fred

0.855 V

Ni2+ (aq) +2e → Ni(s) Ed=-0.250 V

red

=

AG° =

kJ

K for this reaction would be

=

than one.