What is the [OH -] in each solution

[From: ] [author: ] [Date: 11-04-26] [Hit: ]

pOH= 14-12.91=1.[OH-]= .081M(10^-(1.......

pH = 12.91
and
pH = 3.41
and
pH = 5.67

ph = 12.91 ... pOH= 14-12.91=1.09
[OH-]= .081M (10^-(1.09))
Proceed similarly

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