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Disinfection by chlorine (HOCl/OCl-) is widely used to reduce pathogens in drinking water. The ratio of HOCl/OCl- in water is pH-dependent.
Because HOCl is a much stronger disinfectant than OCl-, a typical goal is to achieve [HOCl] = 2 mg/L as Cl2 (i.e., 2.82´10-5 M of HOCl) in order to maintain sufficient disinfection efficiency.
Calculate the acidity constant of hypochlorous acid (HOCl) at 25°C, I = 0.0 M.
HOCl = H+ + OCl- Ka = {H+}{OCl-}/{HOCl}
Is HOCl acid dissociation endothermic or exothermic?
Suppose the source water is at 25°C, I = 0.0 M, and pH = -log{H+} = 7.8, how much total chlorine needs to be added to the water in order to achieve [HOCl] = 2 mg/L as Cl2?
Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..
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