Mass of NO₂= 203.32 g
Given
99.0 L of NO₂
Required
Mass of NO₂
Solution
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.
So mol NO₂ :
= 99 : 22.4
= 4.42
Mass :
= mol x MW
= 4.42 x 46 g/mol
= 203.32 g
