1.

Volume occupied by one molecule of water (density "1 g cm"^(-3)) is :

Answer»

`3.0 xx 10^(-23) cm^(3)`
`5.5 xx 10^(23) cm^(3)`
`9.0 xx 10^(-23) cm^(3)`
`6.023 xx 10^(-23) cm^(3)`

SOLUTION :MASS of ONE molecule of water
`= ((18g))/(6.022xx10^(23))=3xx10^(-23)g`
Since density of water is 1g
`:.` Volume occupied by one molecule of water
`= 3 xx 10^(-23)` CC.


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