Materials:

-data collection system

-pH sensor

-drop counter and micro stir bar

-magnetic stirrer

-50 mL buret

- graduated pipet with rubber bulb

-2, 100 mL beakers

-2, 25 mL beakers

-clamp, right-angle

-clamp, buret

-ring stand

-hydrochloric acid, unknown concentration(from previous lab)

- sodium hydroxide NaOH, standardized in previous lab by student

-pH 4 and pH 10 buffers, 10 mL 

-deionized water, 100 mL

-wash bottle with deionized water