29. The reduction potentials for Au3+ and Ni2+ are as follows: Au3+ + 3e- -＞ Au E° = +1.50 V Ni2+ + 2e- -＞ Ni E° = -0.23 V Calculate ΔG° (at 25°C) for the reaction: 2Au3+ + 3Ni -＞ 3Ni2+ + 2Au (A)-5.00 × 10^2 kJ (B)+5.00 × 10^2 kJ (C)-2140 kJ (D)+1.00 × 10^3 kJ (E)-1.00 × 10^3 kJ

8. A Lewis dot structure for benzene, C6H6 would give two equivalent resonance structures for this cyclic molecule with alternating single and double bonds. A combined LCAO and MO picture for the bonding of the carbon atoms in benzene would be (A)1σ(Csp2-Csp2) bonds between each C atom, and 3π MO delocalized over the C's (B)2σ(Csp3-Csp3) bonds between each C atom, and 1π MO delocalized over the C's (C)1σ(Csp3-Csp3) bonds between each C atom, and 1π MO delocalized over the C's (D)1σ(Csp2-Csp2) bonds between each C atom, and 2π MO delocalized over the C's (E)3σ(C2p-C2p) bonds between each C atom

29. The reduction potentials for Au3+ and Ni2+ are as follows: Au3+ + 3e- -＞ Au E° = +1.50 V Ni2+ + 2e- -＞ Ni E° = -0.23 V Calculate ΔG° (at 25°C) for the reaction: 2Au3+ + 3Ni -＞ 3Ni2+ + 2Au
(A)-5.00 × 10^2 kJ
(B)+5.00 × 10^2 kJ
(C)-2140 kJ
(D)+1.00 × 10^3 kJ
(E)-1.00 × 10^3 kJ

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