Assignment

1) Your original experimental data showing pH before and after adding drops of acid and/or base. This should be your notes from lab period with the teaching assistants signature.

2) Show your calculation for calibrating your pipette.

3) Show your calculation for β for each buffer.

4) Include a graph like the one illustrated above. You can do this in Excel by plotting seven different series of pH values versus drops on the same graph.

5) Include a graph of β versus initial pH. This graph should have seven points.

6) Include a table of your theoretical and measured pH values along with the % error for each buffer. The table should have eight rows (including a row for column labels) and four columns labeled buffer number, theoretical pH, measured pH and % error.

7) Include a brief, one paragraph, discussion of how your results agree or disagree with expectations.