Once you find out what the limiting reagent is as long as you know the relative number of moles which is specified by the big number before a chemical formula you can find out the theoretical yield by multiplying the number of moles by the Relative atomic mass Mr of the product you want to find out 2 votes See 1 more reply. Their goal is to get a percent yield as close to 100 as they can so this is an important calculation for them. Solutions to limiting reactants percent yield and theoretical yield.
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For the balanced equation shown below if the reaction of 408 grams of C6H6O3 produces a. Calculate the number of moles of Fe - this is the pure known chemical and the one to convert into moles. When we put this into the formula we have. Once you find out what the limiting reagent is as long as you know the relative number of moles which is specified by the big number before a chemical formula you can find out the theoretical yield by multiplying the number of moles by the Relative atomic mass Mr of the product you want to find out 2 votes See 1 more reply.