O. What is volume of carbon dioxide, CO2 occupying by i. 5 moles and

 i. 5 moles of CO₂ gas measured at STP. 

Solution ::

molar volume of gas at STP is 22.4 dm³ mol^-1 

(n)Number of moles of gas =\(Volume\space of \space gas \space at \space STP\over Molar \space volume \space of \space gas\) 

Volume of gas at STP = Number of moles × molar volume of gas

=5×22.4

=112 dm³ 

​​​​i. 0.5 moles of CO₂ gas measured at STP. 

Solution:

molar volume of gas at STP is 22.4 dm³ mol^-1 

(n)Number of moles of gas =\(Volume\space of \space gas \space at \space STP\over Molar \space volume \space of \space gas\) 

Volume of gas at STP = Number of moles × molar volume of gas

=0.5×22.4

=11.2 dm³