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The mass of a molecule of water is...

The mass of a molecule of water is

A

`3 xx 10^(-26) kg`

B

`3 xx 10^(-25) kg`

C

`1.5 xx 10^(-26) kg`

D

`2.5 xx 10^(-26) kg `

Text Solution

Verified by Experts

The correct Answer is:
A
`6.022 xx 10^(23)` molecules have mass = 18 g
1 molecule of water has mass = `18/(6.022 xx 10^(23))`
`=3 xx 10^(-23) g = 3 xx 10^(-26) kg`
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