REASONS why you never get 100 percent yield of the desired product in chemical reaction preparations. This is done by using the second equation in the theoretical yield formula section pro tip. If you know the mass of the limiting reactant you must first use the molar mass of the reactant to convert from mass of reactant to moles of reactant.
Another way is to calculate the grams of products produced from the given quantities of reactants.
Convert grams to moles use the mole ratio to bridge products and reactants and then convert moles back to grams. Fraunhofer Institute for Chemical Technology ICT Im not sure if I understand you correctly but if you can form a reaction equation like A B - k1 C k2 D you can estimate the theoretical. The limiting reagent is the reagent that limits the reaction which means that it is the. Limiting reactants or limiting reagents are explained in a simple quick an.