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Hydrogen Peroxide Has Been Used as a Bleach to Change

Question 125

Multiple Choice

Hydrogen peroxide has been used as a bleach to change hair color, as a disinfectant to treat wounds and as a rocket fuel. It is also a weak acid. Calculate the pH of a 0.018 M H2O2 solution. (H2O2: Ka = 2.2 x 10-12)


A) 0.6
B) 6.7
C) 7.3
D) 11.7
E) 13.4

Correct Answer:

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