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Reaction Kinetics Calculator

Determine reactant concentration at any point in time for zero, first, or second-order reactions. Enter the rate constant, initial concentration, and reaction time to get [A] instantly.

Initial Concentration [A₀] (M)

Rate Constant (k) (s⁻¹)

Reaction Time (s)

Reaction Order

Fill in the required fields to see your result.

Chemistry

Reaction Quotient Calculator

Find the reaction quotient Q by dividing product concentration by reactant concentration. Use Q to determine which direction a chemical reaction will proceed to reach equilibrium.

Product concentration (M)

Reactant concentration (M)

Fill in the required fields to see your result.

Key differences

	Reaction Kinetics Calculator	Reaction Quotient Calculator
Category	Chemistry	Chemistry
Inputs required	4	2
Result	Final Concentration (M)	Reaction Quotient (Q)
What it does	Determine reactant concentration at any point in time for zero, first, or second-order reactions. Enter the rate constant, initial concentration, and reaction time to get [A] instantly.	Find the reaction quotient Q by dividing product concentration by reactant concentration. Use Q to determine which direction a chemical reaction will proceed to reach equilibrium.