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Calcimator

Chemical Equation Balancer

Balance chemical equations and calculate stoichiometry. Find limiting reactants and product yields.

Inputs

Results

Product 1 Produced

4 moles

Limiting Reactant

1

Product 2 Produced2 moles
Excess Reactant1 moles
How to Use This Calculator
  1. Enter stoichiometric coefficients and mole amounts for up to two reactants.
  2. Set the product 1 and product 2 coefficients from the balanced chemical equation.
  3. Review the limiting reactant, excess reactant, and moles of each product formed.
  4. Check excess reactant remaining after the reaction goes to completion.
  5. Use this to calculate theoretical yield before scaling up a reaction.

How the result changes with Reactant 1 Coefficient

Reactant 1 CoefficientProduct 1 ProducedLimiting Reactant
0.86 moles2
2.82.86 moles1
5.21.54 moles1
7.21.11 moles1

What each input means

Reactant 1 Coefficient
Stoichiometric coefficient
Reactant 1 Moles
Moles available

How this is calculated

Formula

Limiting Reactant = min(moles/coefficient)

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Reactant 1 Coefficient = 2, Reactant 1 Moles = 4, Reactant 2 Coefficient = 1, Reactant 2 Moles = 3 = 6 input(s) provided
  2. Calculate Product 1 Produced
    4 = 4
  3. Calculate Limiting Reactant
    Limiting Reactant
    1 = 1
  4. Calculate Product 2 Produced
    2 = 2
  5. Calculate Excess Reactant
    Excess Reactant
    1 = 1

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