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The number of water molecules in 250 mL ...

The number of water molecules in 250 mL of water is closest to
[Given: Density of water is `1.0g" "mL^(-1)`, Acogadro's number `=6.023xx10^(23)`]

A

`83.6xx10^(23)`

B

`13.9xx10^(23)`

C

`1.5xx10^(23)`

D

`33.6xx10^(23)`

Text Solution

Verified by Experts

The correct Answer is:
A
Volume of `H_(2)O=250ml,`
Weight of water = 250 gm,
Number of male of `H_(2)O=250/18`
Number of mulecule of `H_(2)O=250/18xxN_(A)=83.6xx10^(23)`
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Knowledge Check

  • Number of moles of neutrons in 1.8 Ml of water is :-

    A
    `4.8xx10^(23)`
    B
    `4.8xx10^(22)`
    C
    `0.8`
    D
    `0.1`

  • How many water molecules are there in a drop of volume 0.05mL? (Density of water is 1g/mL)

    A
    `1.67xx10^(21)`
    B
    `1.67xx10^(22)`
    C
    `1.67xx10^(23)`
    D
    `1.67xx10^(24)`

  • Number of moles of water in 1 L of water with density 1 g/cc are

    A
    55.56
    B
    45.56
    C
    56.55
    D
    5.655

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