The Mole and the Volume of Gas
- AinArifin
- Mar 19, 2017
- 1 min read
The volume occupied by one mole of the gas is called molar volume
One mole of any gas always has the same volume under the same temperature and pressure
The molar volume of any gas is 22.4 dm3 at STP or 24 dm3 at room condition
Relationship between the number of moles and the volume of gas
Example
How many moles of ammonia gas, NH3 are present in 600 cm3 of the gas measured at room conditions? [Molar volume: 24 dm3 mol-1 at room condition]
The number of moles of ammonia gas, NH3
600 cm3 /1000 = 0.6 dm3
= 0.6 dm3
24 dm3 mol-1
= 0.025 mol