Question

1. An AA iron-nickel battery delivers a constant current of 750 mA at 1.2 V

(a)Calculate how long it will take the battery to convert 17.1 g NiO(OH) to Ni(OH)2, assuming 75% efficiency

(b)Calculate the mass (g) of metallic iron converted to Fe(OH)2 during this time.

(c)The battery provides energy at a cost of 6.0 × 10−3 6.0 × 10^(-3) kWh per dollar; calculate the cost of operating the battery in part (a).

Answer 1