1. Convert 16.2 L CO to moles using PV = nRT.
2. Convert 15.39 g Fe2O3 to moles. Moles = gram/molar mass.
3a. Using the coefficients in the balanced equation, convert moles CO to moles Fe.
3b. Use same procedue to convert moles Fe2O3 to moles Fe.
3c. It is likely that moles from 3a and 3b will be different. Obviously, one must be incorrect. The correct one in limiting reagent problems is ALWAYS the smaller value and the reactant producing that value is the limiting reagent.
4. The problem doesn't ask for it but you could then use the smaller value and convert to grams Fe. grams = moles x molar mass.
Fe2O3 + 3CO --> 2Fe + 3CO2
a 16.2 L sample of CO at 1.5 atm and 200 C is combind with 15.39 g Fe2O3.
how many moles of CO are available for the reaction?
what is the limiting reacta?
How many moles of Fe are formed?
1 answer