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The hydrogen ion concentration of a sample of o... - JAMB Chemistry 2018 Question

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
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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