(Solved): 1. For each of the following reactions, balance the chemical equation, calculate the emf, and calcul ...

1. For each of the following reactions, balance the chemical equation, calculate the emf, and calculate G° at 298 K. (Use the smallest possible coefficients for H2O(l), H+(aq), and HO-(aq). These may be zero.)

(a) Aqueous iodide ion is oxidized to I2(s) by Hg2²⁺(aq)

___ I-(aq) + ____Hg2²⁺(aq) + ____H⁺ = ___I2(s) ____Hg(l) +____ H2O(l)

emf
_____V
G°
_____kJ

(b) In basic solution Cr(OH)3(s) is oxidized to CrO42-(aq) by ClO-(aq).

____Cr(OH)3(s) + ____ClO-(aq) + _____OH-(aq) = ______ CrO4^2-(aq) _____Cl-(aq) + ______H2O(l)
emf

_____V
G°
_____kJ

(c) In acidic solution copper(I) ion is oxidized to copper(II) ion by nitrate ion.

____Cu⁺(aq) + ____NO3-(aq) + ____H⁺(aq) = _____Cu2+(aq) _____NO(g) + _____H2O(l)

emf
_____V
G°
_____kJ