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sci.stoichiometry-limiting-reagent Calculator
Identifies the limiting reagent in a chemical reaction from moles of each reactant and balanced stoichiometry, calculates theoretical yield. The limiting reagent is consumed first, ending the reaction — excess reagent remains; percent yield = (actual/theoretical) × 100%.
Inputs
Moles A
Reference formula or conversion factor shown for context.
Moles B
Reference formula or conversion factor shown for context.
Coeff A
Reference formula or conversion factor shown for context.
Coeff B
Reference formula or conversion factor shown for context.
Coeff C
Reference formula or conversion factor shown for context.
Mw C G Mol
Mass of one mole of the substance (g/mol). Found by summing atomic weights. Converts between grams and moles.
Results
limiting reagent
Sample size or count used in the calculation.
moles of product C
The result of multiplying all input values together.
mass of product C (g)
The result of multiplying all input values together.
excess of
Reference formula or conversion factor shown for context.
theoretical yield
Reference formula or conversion factor shown for context.
aA + bB → cC | moles_C = min(nA/a, nB/b) × c
Quantity in moles. 1 mol = 6.022 x 10^23 particles. Moles = mass / molar mass.