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Question

The mass of 0.5 moles of Water molecules is:

(Atomic mass, H =1; O = 16)


A

18 g

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B

0.5 g

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C

27 g

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D

9 g

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Solution

The correct option is D

9 g


Mass of water molecule = Molar mass x number of moles

= 18 x 0.5 = 9 grams.


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