Vapour density of a gas is 14. Then the volume ocxupied by 2.8gm of gas at stp is
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volume of gas at stp = 2.24 L
Explanation:
Given
Vapour density = 14
mass = 2.8 g
volume = ??
Solution
molar mass = 2 X Vapour density
molar mass = 2 X 14
molar mass = 28 g/mol
No. of Moles = mass in grams/ molar mass
No. of Moles = 2.8 / 28
No. of Moles = 0.1 mol
at stp 1 mol = 22.4 L/mol
volume of 0.1 mol = 22.4 X 0.1
volume = 2.24 L
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