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O. What is volume of carbon dioxide, CO2 occupying by i. 5 moles and ii. 0.5 mole of CO2 gas measured at STP.

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 i. 5 moles of COgas 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 COgas 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 

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