The introduction must address these points
What is a titration? What is the purpose of a titration experiment?
What is a primary standard? What was the primary standard in this experiment? (If you didn't use a primary standard, indicate what it should have been))
Why were there 2 standard solutions? That is, why wasn’t NaOH(aq) used as a primary standard for titrating the unknown acid? (If you didn't use a primary standard, then explain why NaOH(aq) should be used as a primary standard.
How would melting of a pure sample differ from melting of an impure sample?
What is Ka? What is pKa? What does a high Ka mean? What does a high pKa mean?
What is a buffer?
For a weak acid, under what conditions will pH = pKa?
second page
Results
Provide tables as indicated in the lab manual
Calculations
Write a sample calculation for each type of calculation
Molar mass of unknown.
Calculation for the half titration point.
third page
Discussion
Your grade will be largely assigned based on correct identification of your unknown. If you are fairly certain that you have misidentified your unknown acid, partial credit will be given if you explain the reason for the uncertainty and provide some plausible sources of error. Miscalculation is not a valid source of error.
You must list the following
The identity of your unknown
Here is the list of possibilities (Links to an external site.)
The experimental molar mass and calculated molar mass
The experimental melting point for your unknown
The experimental pKa for your unknown
The literature melting point for your unknown (with a citation for the reference)
The literature pKa for your unknown (with a citation for the reference)