I THINK the answer to a is 0065kWh But Im not sure I did it

I THINK the answer to (a) is 0.065kWh... But I\'m not sure I did it right... And (b) I have no clue.

Given 2H20 (l) 2H2 (g) 02 (g) EA0 -1.229v a) Wgat amount of energy in kWh, is required to produce one metric ton of hydrogen gas by electrolysis of water b) How much more would it cost to produce this amount of hydrogen in Hawaii at $0.2335 per kWh compared to Idaho at $0.0621 per kWh? Assume that an applied potential of 12V is necessary for effective reduction

Solution

molar mass of h2 = 2g/mol

delta G = -n*F*E = -(4)*96458*(-1.229) =474187 joule

1kWh = 3600000 J

=> 4g hydrogen requires 474187/3600000 = .131718 kwh

=> 1 metric ton requires = 32929.7 kwh