You are asked to make 12 moles of iron(Fe) from iron oxide and
carbon monoxide. How many moles of iron oxide (Fe2O3) is used?
Fe2O3(s)+3CO(g)-2Fe(1) + 3CO2(g
Mass A
(grams)
* 1 mole
*
Molar mass
Mass B
molar mass(g)
Moles B
1 mole
Particles A
*
1 mole
6.02E23
*
(atoms, ecules, formula unite)
6.02E23
1 mole
Particles B
22.4L
Volume A
*
Liters at STP)
1 mole
22.4L
Mole A
(moles)
Moles A
#s from
coefficients from
the balanced
reaction
Imole
Mole B
(males)
Volume B
(Liters at STPI
mole Fe
X
mol Fe208
mol Fe
11
=
mol Fe203