Experiment 1: Determining Molarity of NaOH
In this lab you will use a pH meter to record the pH of your solution along with the volume of citric acid added. You will then graph the data and determine the equivalence point. The equivalence point indicates that the solutions have been mixed in exactly the right proportions according to the equation.
Materials:
2 g. Anhydrous Citric Acid, C6H8O7
1 Pair of gloves
15 mL 0.1M Sodium Hydroxide Solution, NaOH
Scale
Weigh boat
100 mL Beaker
Waste beaker (any volume)
100 mL Beaker
2 Pipettes
30 mL Syringe
Syringe stopcock
Ring clamp
Ring stand
pH Meter
Desiccator (600 mL Glass beaker, 10 g. molecular sieves, filter paper, and Parafilm®)
100 mL Graduated cylinder
Permanent marker
Stir rod
Funnel
*Oven
*Baking pan or tray
*Hot pad or towel
*Access to a graphing software program
*Access to a computer
*100 mL Distilled water
*Procedure for creating this solution provided in the "Before You Begin…" section (located at the beginning of the manual).
* You must provide