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Calculate the weight of A l deposited when a current of 5 Faradays is passed through a solution of A l + + + ions, (The atomic weight of A l is 27)

Options

  1. A27 g m
  2. B36 g m
  3. C45 g m
  4. D39 g m

Correct answer

C. 45 g m

Step-by-step solution

A l 3 + + 3 e - → A l E A l = 27 3 = 9 W A l = E A l × N o . o f f a r a d a y s = 9 × 5 = 45 g m .

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