Calculate the maximum product mass a reaction can produce from the limiting reactant.
Theoretical yield assumes complete conversion with no losses, so it is an upper bound. A percent yield above 100 always indicates impurity or residual solvent rather than a genuinely better reaction. Percent yield is the standard measure of a preparation’s success and is the figure reported in every synthetic procedure.
Theoretical Yield
Theoretical yield = limiting moles × (product ÷ reactant coefficient) × product molar mass
Theoretical yield = limiting moles × (product ÷ reactant coefficient) × product molar mass Theoretical yield assumes complete conversion with no losses, so it is an upper bound. A percent yield above 100 always indicates impurity or residual solvent rather than a genuinely better reaction.
Percent yield is the standard measure of a preparation’s success and is the figure reported in every synthetic procedure.
This calculator takes 5 inputs: Moles of limiting reactant, Coefficient of the limiting reactant, Coefficient of the product, Molar mass of the product, Actual yield obtained. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.