Answer:
58.45g
Explanation:
molar mass of chromium = 52g/mol
Q = it
i = 45.2amp
t = 2x60x60 = 7200sec
c = 3+
F = 96500
mass/molar mass = Q/CF
mass/52=(45.2x7200)/3x96500
mass/52 = (325440)/289500
mass/52 = 1.124
mass =52 x 1.124 = 58.45g
mass = 58.45g