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Moderate

Electrolysis: Calculating Mass of Plated Metal

APCHEM-TJF4XP

A steady current of 10.0 Amps is passed through a nickel production cell for 15 minutes.

Which of the following is the correct expression for calculating the number of grams of nickel produced?

Note:

  • 1 faraday = 96,500 Coulombs
  • The electrolytic cell involves the following half-reaction:

$$Ni^{2+}_{(aq)} + 2e^- \longrightarrow Ni_{(s)}$$

A

$\cfrac { \left( 10.0 \right) \left( 15 \right) \left( 96,500 \right) }{ \left( 59 \right) \left( 60 \right) } \ \text{g}$

B

$\cfrac { \left( 10.0 \right) \left( 15 \right) \left( 59 \right) }{ \left( 60 \right) \left( 96,500 \right) } \ \text{g}$

C

$\cfrac { \left( 10.0 \right) \left( 15 \right) \left( 60 \right) \left( 59 \right) }{ \left( 96,500 \right) \left( 2 \right) } \ \text{g}$

D

$\cfrac { \left( 96,500 \right) \left( 59 \right) }{ \left( 10 \right) \left( 15 \right) \left( 60 \right) \left( 2 \right) } \ \text{g}$