Question

Convert 22g of Co2 into moles.

Answer 1

Co2 = 44 u

no.of moles = given mass ÷molar mass
no.of moles = 22÷44
no.of moles = 0.5

ans = 0.5 moles

Answer 2

No. of mole = Given mass in gram/molecular mass

Molecular mass of CO2=
12 + 32
=44

No. of mole= 22/44
=0.5 mole