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Solved: Calculate [OH? ] for each solution.(a) pH = 4.25(b) pH = 12.53(c) pH = 1.50(d)
Chapter 14, Problem 76P(choose chapter or problem)
QUESTION:
Calculate \(\mathrm{[OH^-]}\) for each solution.
(a) pH = 1.82
(b) pH = 13.28
(c) pH = 8.29
(d) pH = 2.32
Equation Transcription:
Text Transcription:
[OH^-]
Questions & Answers
QUESTION:
Calculate \(\mathrm{[OH^-]}\) for each solution.
(a) pH = 1.82
(b) pH = 13.28
(c) pH = 8.29
(d) pH = 2.32
Equation Transcription:
Text Transcription:
[OH^-]
ANSWER:Solution:
Step 1
The concentration of [OH-] ion and [H3O+] can be determined as follows ,
It is known that pH = -log [H3O+]
-pH = log [H3O+]
10 -pH = 10log [H3O+] or
[H3O+] = 10-pH
1.0 10-14
And [OH- ] = --------------
[H3O+]