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Mole Concept

Number of mol...

Question

Number of moles of water present in $720$ grams of water is:

A

4

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B

10

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C

30

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D

40

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Solution

The correct option is D 40
Number of moles of water $= \frac{m a s s o f w a t e r}{m o l e c u l a r w e i g h t o f w a t e r} = \frac{720}{18} = 40$

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