Question

Calculate the mole fraction of nitrogen gas in a 15.00 L gas cylinder at 29.00°C with 2.300 moles of carbon dioxide and 5.700 moles of nitrogen gas.

Answer #1

no of moles of N2 nN2 = 5.7 moles

no of moles of CO2 nCO2 = 2.3 moles

total no of moles of N2 and CO2 = 5.7 + 2.3 = 8 moles

mole fraction of N2 XN2 = nN2/nN2 + nCO2

= 5.7/5.7 +2.3 = 5.7/8 = 0.7125 >>>>answer

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