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An industrial effluent consisting of an aqueous solution of benzoic acid (C6H5COOH) (Ka = 6.5 x...

An industrial effluent consisting of an aqueous solution of benzoic acid (C6H5COOH) (Ka = 6.5 x 10 ^-5) has a pH of 4.2.
a) Determine the concentration of benzoic acid in this effluent (in mg/L) ---> I got 15 mg/L
b) What will be the effect on 25000 L of water of a small pond, initially with pH of 7.2, when 24 L of the industrial effluent is discharged on the pond? ---> I got pH of 6.9 so pH of the pond decreased

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