Drinking water is often disinfected with Cl2, which hydrolyzes to form HClO, a weak acid

Chapter 18, Problem 18.185

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Drinking water is often disinfected with Cl2, which hydrolyzes to form HClO, a weak acid but powerful disinfectant: Cl2(aq) 1 2H2O(l) - HClO(aq) 1 H3O1(aq) 1 Cl2(aq) The fraction of HClO in solution is defined as 3HClO4 3HClO4 1 3ClO2 4 (a) What is the fraction of HClO at pH 7.00 (Ka of HClO 5 2.931028)? (b) What is the fraction at pH 10.00?

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