weak acid or base that is different colors in the dissociated and nondissociated states
solution that that resists a change in pH when acid or base is added and contains significant quantities of a weak acid and its conjugate base or a weak base and its conjugate acid
number of moles of strong acid, protons (H+), or strong base, hydroxide ions (OH–), that can be added to one liter of solution before the pH changes by 1 in either direction
pH range over which a buffer is effective in stabilizing the pH of a solution; The effective range of a buffer is within one pH unit above and below the pH of the buffer.
point at which all the acid or base molecules in an acidic or basic solution have been neutralized
principle that states that a change in the temperature, pressure, or concentration of a component will cause the equilibrium condition of a chemical system to change in a way that reduces the change
process by which a diprotic acid or a triprotic acid ionizes by losing one proton at a time. Each ionization has a unique equilibrium constant.
quantitative method that relies on measuring the volume of a solution of a known concentration necessary to neutralize a given volume of acid or base