Acids and Bases

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11 Terms

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pH

A measure of the concentration of hydrogen ions ([H^+]) in a solution.

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pOH

A measure of the concentration of hydroxide ions ([OH^-]) in a solution.

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pH + pOH = ?

14 in aqueous solutions at 25^ ext{°C}.

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Strong Acids

Acids that completely dissociate in water.

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Weak Acids

Acids that only partially dissociate in water.

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K_a

The acid dissociation constant used to measure the strength of a weak acid.

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ICE Table

A table used to organize the initial, change, and equilibrium concentrations of species in a reaction.

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What is the endpoint in a titration?

The point at which the indicator changes color.

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Buffer

A solution that resists changes in pH when small amounts of acid or base are added.

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Henderson-Hasselbalch equation

An equation to calculate the pH of a buffer: pH = pKa + log_{10}( rac{[A^-]}{[HA]}).

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Polyprotic Acids

Acids that have more than one ionizable proton.