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Calculate the mass of Ag deposited at ca...

Calculate the mass of Ag deposited at cathode when a current of 2A was passed through a solution of `AgNO_(3)` for 15 min.

Text Solution

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`t=" 15 min "=15xx60s=900s, I=2A`
`Q=Ixxt=2xx900=1800C`
`Ag^(+)+e rarr Ag`
`"96500 C deposits 108g Ag"`
`"1800 C deposits "(108xx1800)/(96500)="2.01g Ag"`
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Knowledge Check

  • 27 g metallic Al is deposited at the cathode, when 10 A current is passed through molten Al_(2)O_(3) . Which of the following comments are correct -

    A
    for the formation of the said amount of `Al, 10A` current was passed for 28950s.
    B
    amount of current passed through molten `Al_(2)O_(3)` is 2.5F
    C
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    D
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