00:01
Alright, so the question here says an analytical chemistry straight titrating 81 .1 ml of a 0 .89 molar butanoic acid, which is a weak acid with a 0 .460 molar solution of sodium hydroxide.
00:16
The pka of the generic acid were given but definitely the ph of the acid solution after the chemist test added that amount.
00:25
So basically what you have here is a titration of a weak acid and a strong base.
00:31
So you begin by simply just writing the equation of the reaction.
00:35
And i would just write hco3h7co2 plus.
00:42
Plus, it's a strong base, so i just have hydroxyl diene.
00:45
And i would have c3h7co2 minus plus water.
00:56
That's the equation.
00:57
Now, let's do a bit of stoichiometry here.
01:00
What is the number of moles of the butanoic acid that we have? we have 81 .1 ml, a concentration of 0 .4600...