00:01
The titration reaction that we're considering has a stoichiometry of one to one.
00:05
One mole hbr reacts with one mole k -o -h in order to produce kbr and water.
00:12
The initial ph is simply going to be equal to the negative log of the hbr concentration.
00:19
This will be before adding any k -o -h.
00:22
The hbr completely dissociates, and the hydronium concentration is the hbr concentration.
00:28
Ph is simply the negative log of the hydronium concentration, giving us a value of 0 .74.
00:35
After the addition of 10 .4 mill liters of k -o -h, we are pre -equivalents.
00:41
We haven't added enough to completely neutralize all of the hbr, so we have excess hbr.
00:48
The hydrogenium concentration will be equal to the moles of hbr in excess, which will correspond to the moles of hydrogen in excess...