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The number of molecules present in 1 cm^...

The number of molecules present in 1 `cm^(3)` of water is :-

A

`2.7xx10^(19)`

B

`3.3xx10^(22)`

C

`6.02xx10^(20)`

D

1000

Text Solution

Verified by Experts

The correct Answer is:
B
Density water=1g/mL
`therefore`Mass of `1cm^(3)` water=density`xx`volume
`=1xx1`
=1g
`therefore`No. of mole of water molecule in `1cm^(3)=`
`therefore`No. of molecule of `H_(2)O` in `1cm^(3)=(1)/(18)xxN_(A)`
`=(1)/(18)xx6xx10^(23)`
`=3.3xx10^(22)`
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