Actual Yield Calculator

Actual yield is the amount of product actually obtained from a chemical reaction in laboratory conditions. It's typically lower than theoretical yield due to incomplete reactions, side reactions, or product losses during isolation and purification.

Actual yield can be calculated using the formula: Actual Yield = (Percent Yield / 100) × Theoretical Yield. You need to know both the theoretical yield and the percent yield of your reaction.

Theoretical yield is the maximum amount of product that could be obtained based on stoichiometry, assuming 100% efficiency. Actual yield is what you actually get in practice, which is usually lower due to real-world limitations and inefficiencies.

You cannot calculate actual yield without knowing either the percent yield or having the actual measured amount from your experiment. Actual yield requires experimental data - it's what you physically obtain and measure in the lab.

No, actual yield and percent yield are different. Actual yield is the amount of product obtained (in grams or moles), while percent yield is the efficiency ratio expressing actual yield as a percentage of theoretical yield.

In theory, no. However, in practice, actual yield might appear higher due to experimental errors, impurities in the product, incomplete drying, or measurement errors. A percent yield over 100% usually indicates experimental issues that need investigation.

Molar mass is needed when converting between grams and moles. If your theoretical and actual yields are in different units (one in grams, one in moles), the calculator uses molar mass to convert them to the same unit for accurate comparison.

Several factors reduce actual yield: incomplete reactions, competing side reactions, product losses during isolation and purification, measurement errors, and impurities in starting materials. Temperature, pressure, and reaction time also influence the final yield.