It is calculated to be the experimental yield divided by theoretical yield multiplied by 100. Calculating the percent yield helps you to know the effectiveness of your performed reaction. Multiply the number of moles of water by the molar mass of water.
Percent yield experimental mass of the desired product theoretical mass of the desired product 100 For this equation you must know two out of the three valuables.
Percentage yield mass of actual yield mass of theoretical yield 100 Lets assume that you obtained an actual yield of 850 grams. You can calculate percent yield by using the simple percent yield equation. Mass of product molecular weight of product moles of limiting reagent in reaction stoichiometry of product. 15 grams is the actual yield.