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Mole Concept and Avogadro's Number

2 moles of ...

Question

2 moles of $C H_{4}$ contains:

6.02 \times 10^{- 23}

atoms of

H

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32 gm of methane

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1.81 \times 10^{23}

atoms of

C H_{4}

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3.0 gm. atom of carbon

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Solution

The correct option is B 32 gm of methane
Solution:- (B) $32 g m$ of methane
Molecular mass of methane $= 16 g m$
$1$ mole of $C H_{4}$ contain $16 g m$ of methane.
Therefore,
$2$ moles of $C H_{4}$ contains $32 g m$ of methane.

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