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Faraday's second law: masses deposited in cells connected in series

This type of question, asked 4 times: 12 May 2024 S1, 16 Apr 2026 S1, 16 Apr 2026 S2, 12 May 2026 S2. All 4 questions below, oldest first.

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  1. Question 1

    12 May 2024 S1

    71
    Electrolytic cells containing Zn and Al salt solutions are connected in series. If 6.5 g of Zn is deposited in one cell calculate mass of Al deposited in second cell (molar mass: Zn=65, Al=27) by passing definite quantity of electricity?

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  2. Question 2

    16 Apr 2026 S1

    28
    The cells A and B contain aqueous solutions of ferrous chloride and ferric chloride respectively. The mass of iron deposited by the same quantity of electricity in cells A and B is in the ratio.

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  3. Question 3

    16 Apr 2026 S2

    26
    What mass of silver (Atomic mass = 108 g/mol) deposited by a quantity of electricity which displaces 5600 mL of O2\mathrm{O_2} at STP ?

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  4. Question 4

    12 May 2026 S2

    26
    When same quantity of electricity is passed through two different cells containing copper sulfate and silver nitrate, if 0.990.99 g Ag and 0.290.29 g Cu are deposited, calculate the molar mass of Ag (Molar mass of Cu = 63.263.2 g/mol)

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