The density of a gas at S.T.P. is $1.40 g r a m s$ per litre. The molecular weight of the gas is

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31.4

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Solution

The correct option is C
31.4

At S.T.P. mol. wt. of a gas = $d e n s i t y \times 22.4 l / m o l$

$1.4 g / l \times 22.4 l / m o l = 31.36 \approx 31.4 g / m o l$

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The density of a gas at S.T.P. is 1.40 grams per litre. The molecular weight of the gas is

The correct option is C 31.4 At S.T.P. mol. wt. of a gas = density × 22.4 l/mol 1.4 g/l×22.4 l/mol= 31.36≈31.4 g/mol

The density of a gas at S.T.P. is $1.40 g r a m s$ per litre. The molecular weight of the gas is

The correct option is C
31.4

At S.T.P. mol. wt. of a gas = $d e n s i t y \times 22.4 l / m o l$

$1.4 g / l \times 22.4 l / m o l = 31.36 \approx 31.4 g / m o l$