Example 2. The capacity of a glass bulb is 30.5 ml. 0.146 g of a gas is filled in the bulb at 22°C
and 755 mm (Hg) pressure. 1 dm of hydrogen at S.T.P. mass 0.09 g. Calculate the vapour density
and the relative molecular mass of the gas.
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The vapour density of a gas is the ratio of the mass of a certain. ... The molecular mass or molar mass of a substance is defined as the ratio of ... 1 dm3 of hydrogen at S.T.P. has a mass of 0.09 g. ... The capacity of a glass bulb is 30.5 ml, 0.146 g of gas is filled in a bulb at 22 °C and 755 mm of Hg pressure
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