If each balloon is filled with carbon dioxide gas at 20 c and 1 atmosphere calculate the mass and the number of moles of carbon dioxide in each balloon at maxium inflation

Below is the solution:

PV = nRT 

P = pressure = 1.0 atm 
V = volume in Litres 
n = moles CO2 = ? mol 
R = gas constant = 0.082057 L atm mol^-1 K^-1 
T = temp in Kelvin = 293.15 K 

Solve for n 
n = PV / RT 

Then mass CO2 = moles x molar mass 
= n x 44.01 g/mol

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