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A mixture of CO and CO(2) is found to ha...

A mixture of CO and `CO_(2)` is found to have a density of 1.5 g/L at `30^(@)C` and 740 torr. What is the composition of the mixture. 

A

`CO = 0.35775, CO_(2) = 0.64225`

B

`CO = 0.64225, CO_(2) = 0.3575`

C

`CO = 0.500, CO_(2) = 0.500`

D

`CO = 0.2500, CO_(2) = 0.7500`

Text Solution

Verified by Experts

The correct Answer is:
A
`because d=(PM)/(RT)implies M=(dRT)/(P)= (1.5 xx 0.0821 xx 303 xx 76)/(74)=38.276`
Let x mole of CO and hence mole of `CO_(2) = (1 – x)`, `38.276 = x xx 28 + (1 – x) 44 implies x = 0.35775`. So `1–x = 0.64225`
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