Answer to Question #236587 in General Chemistry for Mickayla

General Chemistry

Question #236587

A solution is prepared by dissolving 40.0 g of CoSO₄ in water. What current would be needed to deposit all of the cobalt in 6.0 hours?

a)0.12 A

b)0.038 A

c)2.3 A

d)1.2 A

Expert's answer

Molar mass of COSO₄ = 154.996

40/154.996 = 0.2

0.2 × 6 = 1.2A

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