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The Dea were the SQL once point we have our regional 20 ml of acid this time we added 19 ml of sodium hydroxide
mixing two solutions to have to do and one be one it wasn't to the two
try this mixture a bigger able to get these two numbers for your concentration of the acid and base
plug goes into the initial road rice chart
this time the limiting react and is the original acid because this number is smaller so all of the acid
it's consumed
we still have some sodium hydroxide 0.0
641 molar
and we have chloride or really don't care about the chloride concentration because chloride is not an acid
and not a base so
if we know how much hydroxide we have we can calculate the POH
by taking the negative log of 0.0641
and are POH is 1.19
subtract from 14 to give us
a PH of
12.81
so we summarize are PH values
at the start of the experiment the PH was very civic all we had was hydrochloric acid 0.46
we add some sodium hydroxide in the PH goes up to 1.06
at point C we were at the equivalence or the story he metric point and this is neutral seven
because the salt we made is sodium chloride
keep adding sodium hydroxide in the PH goes up to 12.81 that's why we get this
as shaped curve near the equivalence point the PH change is quite a bit and we get a big increase in PH as we add a little bit more so than hydroxide
past equivalence point