Science, asked by apoorvshrivastava200, 10 months ago

a substa
determination of molecular mas
1.74 What is Graham's law of diffusion and how is this
law useful in the determination of molecular mass of
a gas?
1.75 What do you understand by molar volume of a gas?
1.76 Describe a method for the determination of molecular
mass of a volatile substance.
1.77 10 litres of a gas at S.T.P. weigh 19.64 g. Calculate
the molecular mass of the gas.
(Ans. 44]
1.78 240 mL of a dry gas measured at 27°C and 750 mm
pressure weighed 0.64 g. What is the molecular
mass of the gas ?
[Ans. 66.51​

Answers

Answered by sharmababita10021986
5

Graham's law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight. ... In the same conditions of temperature and pressure, the molar mass is proportional to the mass density.

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