92 Решение задачки по химии №09 241

20. A effluent (100 m3) containing 196 mg/l of phosphoric acid entered water with a volume of 200 m3 with an initial acidity of 0.5 mmol/l. How has the acidity of the water changed? What amount of calcium hydroxide is needed to neutralize the excess acidity contained in 100 m3 of runoff?

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