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Equilibrium Constant & Reaction Quotient

K or Q from concentrations with correct exponents — pure solids and liquids excluded automatically.

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Results update as you type. Every step of the working is shown below.

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Result

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Formula used

Q = Π[products]^ν / Π[reactants]^ν (pure solids/liquids omitted)

Every result substitutes your values into this relation step by step above.

Assumptions

  • Concentrations (mol/L) for aqueous species; partial pressures (atm) for gases — don’t mix conventions within one expression.
  • Pure solids and liquids never appear in K or Q.

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