00:01
So, good evening student.
00:01
So in this question, it is a question based on buffer solutions, and we have acetic acid, which is our acid equal to 0 .025.
00:15
And salt of acidic acid, which is sodium acetate, acidate salt, the moles are given to us as 0 .045, right? we have k of acetic acid, which is 10 days to the power minus 5.
00:32
Pk will be equal to minus log ka minus log of this value will be equal to 5.
00:42
Now, we know one thing that ph is equal to pka plus log, moles of salt upon moles of acid, right? pkk is 5 plus log, salt, moles are 0 .045, and acid are 0 .0 .0 .5 .5.
01:08
025...