1-1Based on the Gibbs free energy of formation of substances listed in the table below, calculate EMF...

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Chemistry

1-1Based on the Gibbs freeenergy of formation of substances listed in the table below,calculate EMF for the following cells:

(i) Zn | Zn2+ (1.0 M) || H+ (1.0 M) |O2 (1 atm) | Pt

(ii) Zn | Zn2+ (1.0 M) || Cu2+ (1.0 M) |Cu

(iii) Pt | H2(g) (1 atm) | H+ (1.0 M) ||H+ (1.0 M) | O2 (1 atm) | Pt

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Substances                              DGfo/ kJ mol-1(298 K)

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Zn2+(aq)                                 -147.0

ZnO(s)                                    -318.3

Mn2+(aq)                                -228.3

MnO4-(aq)                              -447.3

MnO2(s)                                 -465.2

Mn2O3(s)                               -881.15

OH-(aq)                                  -157.2

H2O(l)                                    -237.1

Cu2+(aq)                                 +65.52

Cu+(aq)                                   +50.0

Fe3+(aq)                                  -4.6

Fe2+(aq)                                  -78.87

Cr3+(aq)                                  -197.05

CrO42-(aq)                              -727.8

Cr2O72-(aq)                            -1301.2

Ce3+(aq)                                 -672.0

Ce4+(aq)                                 -533.06

Ag+(aq)                                  +77.12

AgCl(s)                                  -109.8

Cl-(aq)                                    -131.3

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