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Calculate the mass of the following : (i...

Calculate the mass of the following : (iii) 1 molecule of water.

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Molecular mass of water `=(2xx1u)+(1xx16u)=18u`
Molar of mass of water `=18g "mol"^(-1)`
Mass of 1 molecule of water
`=("Molar mass of water")/("Avogadro.s number")`
`=(18g "mol"^(-1))/(6.023xx10^23 "mol"^(-1))=2.99xx10-23 g`.
Mass of 1 molecule of water `=2.99xx10^(-23)g`.
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