calculate the number of molecules present in 1 kg water
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2000 molecules
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Molecular gram of H2O=(2*1+16)=(2+16)=18g.
18g. =6.023*10²³
=1g. =6.023*10²³
18
=1kg. or 1000g. = 6.023*10²³*1000
18
=3.363*10^27 number of molecules
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