00:01
Hello students let's begin with this question in this question one plot is given that is between the equivalence of base added and the ph and the one amino acid is given generally amino acids are used to make the proteins now this is the amino acid that is serene and its structure is somewhat looks like this so in the general structure of amino acids it contains two functional groups so let's answer the given parts one by pun in the first part we have to answer which functional groups are being titrate in the general structure of the amino acids, there are the general structure is given in the question.
00:36
It contains the two functional group that is the amine and the carboxlic functional group.
00:46
So the two functional groups which are being titrated is nh2 and coh functional group.
00:54
Now in the second part, we have to answer how pk is determined from the graph.
01:01
Now here at half equivalence point, ph is equals to pga.
01:13
From the graph, we have to determine this half equivalence point.
01:17
This equivalence point is the buffering region.
01:20
So at this point, ph is equal to pkk.
01:23
So we have to find out the value of ph from, so the ph that is corresponds to the pkk.
01:29
The half equal, this equivalence point is also known as the buffering region.
01:33
Now in the third part we have to determine the endpoints...