Question

If 0.060 faraday is passed through an electrolytic cell containing a solution of In3+ ions, the maximum number of moles of In that could be deposited at the cathode isA) 0.010 mole
B) 0.020 mole
C) 0.030 mole
D) 0.060 mole
E) 0.18 mole

Answer 1

Answer: option B. 0.020 mole

Explanation:Please see attachment for explanation

Answer 2

The maximum number of moles of In that could be deposited at the cathode is 0.02 mole.

The given parameters;

• number of ions, n = +3 ions
• charge passed through the electrolytes, Q = 0.06 F

The maximum number of moles of In that could be deposited at the cathode is calculated as follows;

3 ions = 3 F

3 F  ----------------------- 1 mole of the ion

0.06 F ---------------------- ? mole of the ion

$= \frac{0.06\ F \times 1}{3 \ F } \\\\= 0.02 \ mole$

Thus, the maximum number of moles of In that could be deposited at the cathode is 0.02 mole.

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