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you are in charge of treating the wastewater leaving a chrome plating facility. the maximum chromium-3 concentration your facility is allowed to discharge is 0.1

you are in charge of treating the wastewater leaving a chrome plating facility. the maximum chromium-3 concentration your facility is allowed to discharge is 0.1 mg/l according to the epas standard for total chromium. at what ph level should the water be maintained to ensure this value is not exceeded? PLEASE solve using a math approach. DO NOT paste the answer the other people used for this, I will dislike

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