Q.

If the density of water is 1 g  cm−3 then the volume occupied by one molecule of water is approximately

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a

18  cm3

b

22400  cm3

c

6.02 ×  10−23  cm3

d

3.0 ×  10−23  cm3

answer is D.

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Detailed Solution

d=MV;1=MV or M=V;  18  g=18ml6 ×  1023  molecule  of water has  volume =18cc1  molecule  of  water has  volume = 186 ×  1023                                           =3.0 ×  10−23  cm3
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