Limiting reactant calculator

Calculate theoretical product and limiting reactant position with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use theoretical product and limiting reactant position to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Available reactants (mol)
4,3
Balanced coefficients
2,1
Product coefficient
2
Theoretical product (mol)
4
Limiting reactant position
1

Try another scenario

Available reactants (mol)
8,6
Balanced coefficients
2,1
Product coefficient
2
Theoretical product (mol)
8
Limiting reactant position
1
Calculation method

Calculation method

Theoretical product (mol)

Divide each available reactant amount by its matching stoichiometric coefficient. Take the smallest ratio and multiply by product coefficient c.

Limiting reactant position

Return the one-based position of the smallest ratio; if tied, return the first tied input.

Symbols and units
a
Available reactants (mol)
b
Balanced coefficients
c
Product coefficient

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Compare available moles divided by stoichiometric coefficients. Enter a balanced reaction and consistent amounts. Lists support up to 1,000 finite values.
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Further reading

Method reference ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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