Q. 6

Calculate the number of water molecules present in one drop of water which weighs 0.18 g.

Answer :

According to mole concept we know that gram molecular weight of any compound consists of Avogadro number of molecules.


This implies that 18 grams of water consists 6.023 x 1023 molecules of water.


18 grams 6.023 x 1023 molecules


0.18 grams ?


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