If you know the number of protons what else do you know the number of?

Label a-f based on the table using c for concentrated and d for dilute

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

Draw the lewis dot structure for each of the following polyatomic ions