Acids, equilibrium & kinetics Calculators
Handle pH, equilibrium expressions, rates, orders and Arrhenius relationships with clear assumptions.
pH ↔ [H⁺]
Convert between pH and hydrogen-ion concentration using pH = −log₁₀[H⁺].
Open calculatorpH, pOH & Kw (HL)
Convert among pH, pOH, [H⁺] and [OH⁻] using a specified Kw, with no assumption that pKw must equal 14.
Open calculatorK or Q expression
Evaluate a concentration-based equilibrium expression from numerator and denominator concentration terms and exponents.
Open calculatorReaction rate
Calculate an average rate from a change over time, or the common inverse-time rate proxy used in clock-style experiments.
Open calculatorRate order (HL)
Determine an order with respect to one reactant from two initial-rate experiments, then estimate the corresponding rate constant.
Open calculatorArrhenius Eₐ (HL)
Use two rate constants at two temperatures to calculate activation energy and the Arrhenius pre-exponential factor.
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