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Question

A mixture of CO2 and H2 contains 4.5 × 1023 molecules in it. The partial pressure of CO2 is 23rd of the total pressure. The weight of CO2 present in the mixture in grams is:

[N = 6 × 1023]

A
11
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B
44
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C
88
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D
22
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Solution

The correct option is C 22
PCO2P=XCO2=23=moles of CO2Total moles of mixture

Total moles of mixture =4.5×10236×1023=34

XCO2=23=moles of CO234

Thus, moles of CO2=0.5

Wt. of CO2=22 gm

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