106NISHANT SIR ANSWERING IN CHEM [5][5][5]
At pH = pKIn+ 1 ( where KIn = dissociation constant for indicatior ) the ratio of [In-1]/[HIn] in the solution is {10/1} for this pH the % dissociation of the indicatior is
1. 91
2. 80
3. 10
4. 63
-
UP 0 DOWN 0 0 3
3 Answers
62good question... a bit too fundamental i guess
HIn -> H+ + In-1
1 0 0
1-α α α
α/(1-α) = 10 *given!
thus, α=10/11
thus it is 91% (a)
is this the correct answer?