Question on: JAMB Chemistry - 2018
The hydrogen ion concentration of a sample of orange juice is 2.0 X 10\(^{-11}\)moldm\(^{-3}\). What is its p\(^{OH}\)? [log102 = 0.3010]
A
3.30
B
13.00
C
10.70
D
11.30
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Correct Option: C
p\(^{OH}\) = -Log [OH\(^-\)]
[OH\(^-\) ] = 2.0 X 10\(^{-11}\)moldm\(^{-3}\)
p\(^{OH}\) = -Log [2.0 X 10\(^{-11}\)]
p\(^{OH}\) = 10.70
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