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Calculadora de equilibrio

Calcula la constante de equilibrio Keq mediante la ley de acción de masas.

Introducción

Equilibrium Calculator — Calculate the equilibrium constant Keq using the law of mass action. Enter Product concentrations (comma-separated), Product coefficients, Reactant concentrations, Reactant coefficients to get an instant, accurate result.

Fórmula

Law of mass action: Keq = [products]^(coefficients) / [reactants]^(coefficients), with each equilibrium concentration raised to its stoichiometric coefficient from the balanced equation.

Paso a paso

  1. Enter the Product concentrations (comma-separated).
  2. Enter the Product coefficients.
  3. Enter the Reactant concentrations.
  4. Enter the Reactant coefficients.
  5. Click Calculate to see your result instantly.

Ejemplo del mundo real

Example: With Product concentrations (comma-separated) = 2,1, Product coefficients = 1,1, Reactant concentrations = 0.5,1, Reactant coefficients = 1,1, the Equilibrium Calculator gives Keq: 4.

Preguntas Frecuentes

What does the value of Keq tell you?
Keq >> 1 means the reaction favors products at equilibrium; Keq << 1 means it favors reactants; Keq ≈ 1 means comparable amounts of both.
Why do stoichiometric coefficients become exponents?
The law of mass action requires each species' equilibrium concentration to be raised to the power of its coefficient in the balanced chemical equation.
What inputs does the Equilibrium Calculator need?
You'll need to provide: Product concentrations (comma-separated), Product coefficients, Reactant concentrations, Reactant coefficients. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Equilibrium Calculator?
The Equilibrium Calculator applies the formula exactly as calculated — Law of mass action: Keq = [products]^(coefficients) / [reactants]^(coefficients), with each equilibrium concentration raised to its stoichiometric coefficient from the balanced equation. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Equilibrium Calculator free to use?
Yes, the Equilibrium Calculator is completely free, requires no signup, and runs instantly in your browser.

Acerca de Calculadora de equilibrio

The Equilibrium Calculator uses a real, verifiable formula — Law of mass action: Keq = [products]^(coefficients) / [reactants]^(coefficients), with each equilibrium concentration raised to its stoichiometric coefficient from the balanced equation. — so results are accurate every time, not an approximation.