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A waste contains 180 mg/L of copper at a flow rate of 100 L/min. Find the amount of sodium borohydride needed to reduce this waste

A waste contains 180 mg/L of copper at a flow rate of 100 L/min. Find the amount of sodium borohydride needed to reduce this waste (the reaction takes soluble Copper (Cu+) and converts it to insoluble Copper (precip Cu).

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