basic

Second-Order Reaction Integrated Rate Law Calculator

1/[A]t = 1/[A]₀ + kt — second-order concentration vs time.

Calculates concentration at time t and half-life for a second-order reaction from initial concentration and rate constant.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

1/[A]t = 1/[A]₀ + k×t; t½ = 1/(k×[A]₀)

In depth

Calculates concentration at time t and half-life for a second-order reaction from initial concentration and rate constant.