Step-by-step explanation:
formula:
mass - moles = mass given ÷ molar mass
R.M.M of CO2 = 32 + 6 = 38
Molar mass of CO 2 = 38g (recall that r.m.m = molar mass)
38g of CO2 will produce 1 mole
therefore 12.33g will produce:
12.33÷38g (recall formula above)
answer: 0.324 moles