Q. 294.1( 9 Votes )

Show by means of calculations that 5 moles of CO2 and 5 moles of H2O do not have the same mass. How much is the difference in their masses?

Answer :

One mole of CO2 weighs (12+2×16)g = 44g

5 moles of CO2 weighs 5×44g = 220g


One mole of H2O weighs (1×2+16)g = 18g


5 moles of H2O weighs 5×18g = 90g


Hence from above calculation, it can be concluded that there is a difference of 130 g between 5 moles of CO2 and 5 moles of H2O.


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