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Question

The number of molecules in 89.6 L of a gas at STP are:

A

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B
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C

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D

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Solution

The correct option is D

22.4 L of a gas at STP = 6.022×1023 molecules
89.6L of a gas at STP = 6.022×1023×89.622.4=4×6.022×1023 molecules.

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