calculate the mass of 6.022*10^23 molecules of CO2

We know that 6.022 X 1023 molecules = 1 mol
Number of moles = given mass / molar mass
given mass of CO2 = no. of moles X molar mass
                                  = 1 X 44 g/mol
​                                 =44 g

Hence 6.022 X 1023 molecule of CO2 weighs 44 g.

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