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Excess Reactant Calculator
How much of the non-limiting reactant is left over after the reaction finishes.
Calculator
Results update as you type. Every step of the working is shown below.
Examples:
Result
Enter values above — the answer appears here instantly, with full working.
Formula used
excess = n_initial − ν × extent
Every result substitutes your values into this relation step by step above.
Assumptions
- Same inputs as the limiting-reactant tool; reaction completes.