The density of water is 1g/mL. Assuming that there are no intermolecular spaces between water molecules in liquid water, the volume of a water molecule is

Options

A. `1.5xx10^(-23)ml`
B. `6xx10^(-23)ml`
C. `3xx10^(-23)ml`
D. `3xx10^(-22)ml`

Answer

C

Explanation

`6.023xx10^(23)` molecules water - 18 g
1 molecules water - `(1xx18)/(6.023xx10^(23))g`
1g water = 1 mL water
`(1xx18)/(6.023xx10^(23))g` water
`r=(1xx18)/(6.023xx10^(23))xx(1)/(1)~~3xx10^(-23)ml`