CHEM 123 Standardization_of_NaOH_with_a_KHP_solution_11_8_202

Standardization with KHP
Purpose: The purpose of this lab is to determine the acid-base titration using “KHP” solution as

a weak acid and determine the concentration of a strong base (NaOH) by using the process of

titration.

Procedures:

1) First, you need to get all the materials you need to start the procedure. You will need, 1 M

NaOH solution, 25.00 mL of 0.500 M “KHP”, solution of phenolthalein indicator, and 50

mL burette.

2) Second, you need to add 50 mL of NaOH to the 50 mL burette, then add 0.3 mL of the

phenolthalein solution to the KHP solution.

3) Move the burette with the NaOH solution and place it inside the KHP solution.

4) Carefully, add 0.2 increments of NaOH from the burette to the KHP solution until it

reaches the endpoint. You will notice, the grey KHP solution will change to pink at the

endpoint.

5) In order to find the concentration of NaOH you will determine that from this titration

endpoint.




Results:




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