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The no.of H(3),O^(+) ions present in 10 ...

The no.of `H_(3),O^(+)` ions present in 10 ml of water at `25^(@)`C is

A

`6.023 xx 10^(-14)`

B

` 6.023 xx 10^(14)`

C

` 6.023 xx10 ^(-19)`

D

` 6.023 xx 10^(19)`

Text Solution

Verified by Experts

The correct Answer is:
B
` [H^(+) ] at 25^(@) C ` is `10 ^(-7) "mole " // "lit " `
` 10^(-7) xx 6 xx 10^(23) ……… 1000 ml `
` x……. 10 ml rArr x = 6.02 xx 10^(14) `
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Knowledge Check

  • The no.of H_3O^(+) ions presents in 10 ml of water at 25 ^(@) C is

    A
    `6.023 xx 10^(-14)`
    B
    ` 6.023 xx 10^(14)`
    C
    ` 6.023 xx10 ^(-19)`
    D
    ` 6.023 xx 10^(19)`

  • The pH of a solution is 12 . The no. of H^(+) ions present in 1 ml of this solution at 25^(@) C is

    A
    `6.02 xx 10^(20)`
    B
    `6.02 xx 10^(8)`
    C
    `10^(-12)`
    D
    `10^(-2)`

  • The geometry of H_(3)O^(+) ion is

    A
    planar
    B
    Triangular
    C
    Pyramidal
    D
    Tetrhedral

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