Question

calculate the number of molecules present in 4.4 g of co2

Answer 1

No. of moles = Given mass/ molar mass
= 4.4 / 44 = 0.1 moles

no. of molecules or particles = no. of moles x avogadro no.
= 0.1 x 6.023 x 10ki power22
= 6.023 x10ki power22