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Eamcet Chemistry
1 st Year: Unit 1.1(Basics & Concepts) - Weights & Mole concepts

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The density of water is 1g/mL. Assuming that there are no interspaces between water molecules in liquid water, the volume of a water molecule is

A. 1.5×10^–23ml

B. 6×10^–23ml

C. 3×10-^–23ml

D. 3×10^–22ml

E. None of the above

View Answer

Correct choice: C

Explanation:

d=1g/ml i.e mass of 1ml water=1gm No.of molecules in 1gm water= 1 X6.023X10power23/18 Volume of (6.023X10power23/18 )molecules=1ml Volume of one molecule= 1/(6.023X10power23/18 ) =3X10power-23ml

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Eamcet Chemistry 1 st Year: Unit 1.1(Basics & Concepts) - Weights & Mole concepts

Eamcet Chemistry
1 st Year: Unit 1.1(Basics & Concepts) - Weights & Mole concepts