My Phychem notes- Gases Problem Solving # 2

What is the pressure exerted by 24 .0 g of carbon dioxide gas in a 25 dm3 container at 0 degrees Celsius, Express the pressure in Pa and bar.Show solution
Answer


PCO2=? Pa & bar
VCO2= 25 dm3
mCO2= 24.0 g
T= 273K
R= 8.3145 L.bar/molK
nCO2= 24.0 g/ 44 g/mol = 0.545 mol

PCO2= nRT/V= 0-545 mol(8.3145 X 10-2 L bar/ molK) (273K)/ 25 L= .495 bar

49.5 bar ( 1.0 x 10 5 Pa/bar)= 4.95 x 104 Pa