Question

Carbon monoxide is a gas at 0 °c and a pressure of 1.58 × 105 pa. it is a diatomic gas, each of its molecules consisting of one carbon atom (atomic mass = 12.0 u) and one oxygen atom (atomic mass = 16.0 u). assuming that carbon monoxide is an ideal gas, calculate its density ρ.

Answer 1

Given temperature =
`0^(0)C = (0^(0) + 273 )K = 273 K`

Pressure = 1.58 ×
`10^(5) Pa` ×
`(1 atm)/(1.01325*10^(5)Pa)`

= 1.56 atm

`Density =(PM)/(RT)`

ρ =
`((1.56 atm)(28.01 g/mol))/((0.08206 L.atm/mol.K)(273 K))`

= 1.95 g/L