a.Determine the pH of a 0.20 M CH3NH3Cl
solution.
(Kb (CH3NH2) = 4.4 x
10-4)
b.
Determine what products are expected to be produced (a) at the cathode and (b) at the anode as a result of electrolysis of an aqueous solution of MgI2 with inert electrodes. The standard electrode potentials are:
O2(g) + 4 H+(aq) + 4 e-→ 2 H2O(l) E° = +1.23 V
I2(s) + 2 e- → 2 I-(aq) E° = +0.54 V
2 H2O(l) + 2 e- → H2(g) + 2 OH-(aq) E° = -0.83 V
Mg2+(aq) + 2 e- → Mg(s) E° = -2.37 V
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