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pH
A measure of the concentration of hydrogen ions ([H+]) in a solution.
pOH
A measure of the concentration of hydroxide ions ([OH−]) in a solution.
pH + pOH = ?
14 in aqueous solutions at 25ext°C.
Strong Acids
Acids that completely dissociate in water.
Weak Acids
Acids that only partially dissociate in water.
Ka
The acid dissociation constant used to measure the strength of a weak acid.
ICE Table
A table used to organize the initial, change, and equilibrium concentrations of species in a reaction.
What is the endpoint in a titration?
The point at which the indicator changes color.
Buffer
A solution that resists changes in pH when small amounts of acid or base are added.
Henderson-Hasselbalch equation
An equation to calculate the pH of a buffer: pH=pKa+log10([HA][A−]).
Polyprotic Acids
Acids that have more than one ionizable proton.