Lab 9 pH titration curve

To leave the stir bar and stir bar retriever on the benchtop at the end of the lab period

special objective

Monoprotic acids

……ionize to form one H+ ion per molecule of acid

Polyprotic acids

……… ionize to form more than one H+ ion per molecule of acid.

diprotic acids

………. specifically ionize to form two H+ ions per molecule of acid

Henderson-Hasselbalch equation

pH equation is know as the …….

endpoint

One way to determine the pKa value(s) for a weak acid is titrate the weak acid with a strong base, such as NaOH, past the ……..

indicator

an …….. will be used to visually monitor the endpoint with a color change

pH titration curve

Plotting the pH as a function of the volume of NaOH added yields a ……..

equivalence point

The shape of the sigmoidal curve can be used to identify the ………

half-equivalence point

at the ……… half of HA is neutralized to A- and their concentrations equivalent