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How many moles of electrons weigh one ki...

How many moles of electrons weigh one kilogram?

A

`6.023xx10^(23)`

B

`1/9.108xx10^(31)`

C

`6.023/9.108xx10^(54)`

D

`1/(9.108xx6.023) xx10^(8)`

Text Solution

Verified by Experts

The correct Answer is:
D
1 mole of electron weight `9.108 xx 10^(-31) xx 6.023 xx 10^(23)kg`
So number of moles of electron in 1 kg is `(1)/(9.108 xx 10^(-31) xx 6.023 xx 10^(23)) = (1)/(9.108xx 6.023) xx10^(8)`
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Knowledge Check

  • How many moles of electron weigh one kilogram?

    A
    `6.023xx10^(23)`
    B
    `(1)/(9.108)xx10^(31)`
    C
    `(6.023xx10^(54))/(9.108)`
    D
    `(1)/(9.108xx6.023)xx10^(8)`

  • How many moles of electron weigh one kilogram ?

    A
    `6.023xx10^23`
    B
    `1/9.108 xx 10^54`
    C
    `6.023/9.108 xx 10^54`
    D
    `1/(9.108 xx 6.023) xx 10^8`

  • How may moles of electrons weigh one kilogram?

    A
    `6.023 xx ^(23)`
    B
    `(1)/(9.108) xx 10^(31)`
    C
    `(6.023)/(9.108) xx 10^(54)`
    D
    `(1)/(9.108 xx 6.023) xx 10^(8)`

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