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Mole Concept

Number of mil...

Question

Number of mili-moles of $H_{2} O$ molecule in $1.0$ g of water is:

A

1

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B

18

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C

55.55

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D

100

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Solution

The correct option is C 55.55
$N o . o f m o l e s$ $=$ $\frac{W e i g h t}{M o l e c u l a r w e i g h t}$

$= \frac{1}{18} = 0.055 m o l e s$ or $55.55 m i l l i m o l e s$

Hence, option C is correct.

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