1.

What is the molecular mass of water?

Answer»

Solution :Molecular MASS =Real mass of one molecular `6.022 XX 10^(23)` water molecules=18g
One water molecular =?
Mass of a molecule `=(18)/(6.022 xx10^(23))=2.99 xx 10^(-23)g`
`=2.99 xx 10^(-26)kg`


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