Air is a mixture of several gases. The 10 most abundant of these gases are listed...

Air is a mixture of several gases. The 10 most abundant of these gases are listed here along with their mole fractions and molar masses.

What mass of carbon dioxide is present in 1.00 m3 of dry air at a temperature of 25 ∘C and a pressure of 647 torr?

Component	Mole fraction	Molar mass (g/mol)
Nitrogen	0.78084	28.013
Oxygen	0.20948	31.998
Argon	0.00934	39.948
Carbon dioxide	0.000375	44.0099
Neon	0.00001818	20.183
Helium	0.00000524	4.003
Methane	0.000002	16.043
Krypton	0.00000114	83.80
Hydrogen	0.0000005	2.0159
Nitrous oxide	0.0000005	44.0128

Solutions

Expert Solution

PV = nRT

P = 647torr = 647/760 = 085atm

V = 1m^3 = 1000L

T = 25⁰C = 25+273 = 298K

n = PV/RT

= 0.85*1000/0.0821*298 = 34.74moles ...this moles of dry air

moles of CO2 = 34.74*0.000375 = 0.013 moles

mass of CO2 = no of moles * gram molar mass

= 0.013*44 = 0.572g >>>>>answer

queen_honey_blossom answered 1 year ago

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