Q.

The hydroxide ion concentration of a wine is 8 x 10 -11 M . What is the pH of the wine?

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a

2.10

b

2.9

c

3.9

d

4.9

answer is C.

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Detailed Solution

pOH=-log10OH-         =-log[8×10-11]         =11-log8         =11-0.903=10.097 PH =14-POH= 14 -10.097=3.9
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