Full Lab Manual Introduction & Goals Chemistry & Background In
Your Write-up In this two-week experiment you will first explore
the behavior of monoprotic and polyprotic acids. In week one,
you will investigate the acid-base properties of acetic acid,
CH3COOH, and phosphoric acid, H3PO4. By titrating, you will
examine the acid and conjugate base species present across the
pH scale and the composition of buffers at different pH's. In
week 2 of this experiment, you will use your knowledge and
skills to identify unknown solutions as acids, bases, or buffers
and determine their identity from their pKa, pKb or pH values.
How do you expect pH to change with added titrant? What chemical
species are present at what pH? What is the buffer region? How
does a buffer work? Which equilibrium is most important in each
pH region? Trustees of Dartmouth College, Copyright 19972003