Fill out the whole table, you do not have to show your work on all of them, just show your work on 4 different kinds, example:
Problem #1: an acid that I measured the pH, we turn that into hydrogen ion concentration and fill out the table.
Problem #2: an acid where I did not measure the pH, in which case you start by looking up kA, then fill out the table
Problem #3: a base where I measured the pH turn that into hydroxide concentration and fill out the table,
Problem #4: a base where I did not measure the pH, then you have to find kB and fill out the table.
You only have to show work for each one of these and the rest can be done without any work.
In that table if you were to look at “Exp pH” you could see that some of them are crossed over and another pH is written, those ones are called “measured” for the measured columns you have to fill out “Theo Ka or Kb” and the “%error” as well. For the non measured rows, you do not have to fill out “Theo Ka or Kb” and the “%error.”
NOTES:
1) For the Conjugate Acid and Conjugate Base, do not put H+, OH-. If it’s a weak acid, put that weak acid. For Conjugate base, then put the weak base. If the compound was a weak base, then put that thing in there, then put the conjugate acid in the other column. And do not include any spectator ions.
2) Do not bother to use the ice table to determine X, values for Ka or Kb can be looked up online.
3) In the case of nitrate ion, we cannot Kb, we can only look up Ka for its conjugate acid.
4) 7 of them have their pH measured. And the other 7 do not and that should be looked up.
