Stoichiometry Calculator (Limiting Reagent, Theoretical Yield, Percent Yield)

Add text to the start or end of each line in bulk.

This tool performs calculations only. It does not provide procedures, conditions, or safety guidance.

Load example

Examples fill the form.

1) Reaction definition

Automatic balancing is not provided. Enter coefficients manually.

Mod de introducere

Reactants

Coeff.	Species	Molar mass (g/mol)	Acțiuni

→

Products

Coeff.	Species	Molar mass (g/mol)	Acțiuni

Auto from formula: planned

2) Input amounts

Set the input type per reactant. Values are converted to mol for calculation.

Limiting reagent requires all reactant inputs.

Enable yield inputs

Target product

Expected yield (%)

Theoretical × expected = estimated yield.

Actual yield

Actual type

4) Calculation settings

Display precision

Significant figures

Decimal places

Rotunjire

Auto switch mol / mmol

Stoichiometry Calculator (Limiting Reagent Calculator, Theoretical Yield, Percent Yield Calculator)

Use balanced coefficients and input amounts to compute limiting reagent, excess, and theoretical yield.

Compute n_i / ν_i for each reactant and take the minimum; this tool shows the ratios explicitly.

Percent yield = actual / theoretical × 100. Expected yield is also supported for planning.

Does it auto-balance reactions?

No. Enter coefficients manually to avoid misinterpretation. Auto-balance may be added later.

Can I use solution inputs (M × L)?

Yes. Moles are calculated as concentration × volume.

Multiple-step reactions?

Compute each step separately and carry the product to the next step (multi-step support is planned).

Which product does percent yield use?

Select a target product when multiple products are present.

Reagent purity or assay?

Set purity (%) to adjust effective moles.

This page is a calculation tool only. It does not provide procedures, conditions, safety guidance, equipment, or hazard assessments.
Real reactions may deviate due to side reactions, equilibrium, solubility, kinetics, and losses.
Enter coefficients manually; automatic balancing is not performed.