Theoretical Yield Calculator

Theoretical Yield Calculator

The Theoretical Yield Calculator computes the maximum mass of product that can form from a given limiting reagent, assuming 100% reaction efficiency. It is essential for planning lab work and comparing against actual yield using a Percent Yield Calculator.

First, calculate moles of the limiting reagent:

$$n = \frac{m_{\mathrm{reagent}}}{M_{\mathrm{reagent}} \times c_{\mathrm{reagent}}}$$

Then calculate theoretical product mass:

$$m_{\mathrm{product}} = M_{\mathrm{product}} \times n \times c_{\mathrm{product}}$$

where $m$ is mass in grams, $M$ is molecular weight in g/mol, and $c$ is the stoichiometric coefficient from the balanced equation.

For example, reacting 5 g of acetone ($M = 58$ g/mol, stoichiometry 1) to form a product with $M = 85$ g/mol and stoichiometry 1 gives $n = 5/58 = 0.0862$ mol and theoretical yield $= 85 \times 0.0862 = 7.33$ g.

Related tools: Percent Yield Calculator, Molar Mass Calculator, and Combustion Reaction Calculator.