Question

A mixture of CO and CO2 is found to have a density of 1.5gL at 303Kelvin and 730torr.What is the composition of the mixture?

Answer 1

Let the average molecular mass be M

dRT P 1.5 x 0.0821 x 303 × 760 M =

730

38.85

Let x mole of CO and (1-x) mole of CO₂ be present

x x 28+ (1-x) x 44 = 38.85

x = 0.3218

Mole % of CO 32.18 and

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Mole % of CO₂ = 100 - 32.18 = 67.82

Answer 2

Answer:

When we find a mixture of CO2 and CO then d equals 1.50 litres or gram. P equals 730/760 atm and therefore T is 303K.

730 / 760 equals 1.5/ m which when multiplied by 0.0821 × 303 results in 38.35 which is molecular weight of the mixture of CO2 and CO.