calculate the mass of So2 gas which will contain the same number of molecules present in 4.4 g of Co2
The molar mass that is the mass of one mole of carbon dioxide is 44g. This means there are 6.022 X 1023 molecules of CO2 present in 44g of CO2. So
number of molecules present in 44g of CO2 = 6.022 X 1023
number of molecules present in 1g of CO2 = (6.022 X 1023) / 44
number of molecules present in 4.4g of CO2 = (6.022 X 1023 X 4.4) / 44
= 6.022 X 1022
Hence 4.4g of CO2 contains 6.022 X 1022 molecules of CO2. We will now calculate the mass of SO2 which contains 6.022 X 1022 molecules. The molar mass or the mass of one mole of SO2 is 64g. Since there are 6.022 X 1023 particles in one mole of a substance, therefore
mass of 6.022 X 1023 molecules of SO2 = 64g
mass of 1 molecule of SO2 = 64 / (6.022 X 1023)g
mass of 6.022 X 1022 molecules of SO2 = (64 X 6.022 X 1022) / (6.022 X 1023)
= 6.4g
Thus, 6.4g of SO2 contains the same number of molecules as are present in 4.4g of CO2.