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The event were 5 ml past equivalence point
so gay and mixing the two solutions doing it dilution shortcut
and then using those numbers as your start of the ice chart
this time the limiting react and is the original week base all of this is Al consumed
which means we're gonna have son strong acid left over
so after your ice chart identify
that we have some strong acid
we have so a weak acid and bromide is neutral so the sun acid not a base
this is the first time we've seen
a strong acid and a weak acid together in the same solution strong acids do not react with weak acids
acid reacted bases so the first
thing to notice is the strong acid will not react with the weak acid
if you look at the numbers we have a lot more of the weak acid and we do the strong acid but
remember that a weak acid reacts
to a very small extent can have as a very small KA and other words the weak acid will make a tiny
amount of hydro nahum compared to the strong acid
so when you have one component left and your solution that strong and one component that tweak
we're going two ignore the week
acid because that
chemical does not make very much hide rhodium is not to change the PH very much
so we can find the PH
by just looking at the strong acid
and all of
the strong acid remember turns in two hydro nahum
so the PH is just the negative log
of 2.0435
which gives us a very acidic 1.3 sects for our PH
if we had had a strong base and a weak acid
the point of a titration currently were past equivalence
you'll have a strong base
in a week base together in the same solution just like in this example we're going to ignore in the
contribution of the week base and the PH is controlled by
the strong base