Calculate the number of water molecules present in one drop of water which weighs0.18 g.TNSCERT Class 10 Chemistry Ch 10 Atoms and Molecules
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Molecular mass of h20=18g
Now since 1 mole of a substance contains 6.022×10^23 Molecules.
ATQ
18g of water contains - - - - - >6.022×10^23 Molecules
1 g will contain - - - - 6.022×10^23/18
0.18 g will contain___ tn 6.022×10^23/18×0.18
=6.022×10^21 molecules.
Now since 1 mole of a substance contains 6.022×10^23 Molecules.
ATQ
18g of water contains - - - - - >6.022×10^23 Molecules
1 g will contain - - - - 6.022×10^23/18
0.18 g will contain___ tn 6.022×10^23/18×0.18
=6.022×10^21 molecules.
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