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Question

What is the actual volume occupied by water molecules present in 20cm3 of water ?

A
20cm3
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B
10cm3
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C
40cm3
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D
24.89dm3
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Solution

The correct option is D 24.89dm3
Density of water = 1 g/cc

Therefore 20 cm3 weights 20 g of water molecules.

So number of moles of water =2018=1.11 moles

1 mole occupies 22.4 L.

Therefore 1.11 moles occupies 24.89 L, i.e., 24.89 dm3.

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