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Initial Concentration

Definition

Initial concentration refers to the molarity or amount of substance per unit volume present at the start of a reaction before any change has occurred.

Analogy

Imagine going into an all-you-can-eat buffet. The initial concentration would be like the amount of food available when you first walk in before anyone starts eating anything.

Related terms

Molarity: A measure of the concentration of a solute in a solution, or of any chemical species, in terms of amount-of-substance concentration.

Solute: The minor component in a solution that is dissolved by the solvent.

Solvent: A substance that dissolves a solute resulting in a solution; usually it's the component present in greater quantity.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.