Question: A mining operation discharges 1 . 2 m ^ 3 / s of wastewater containing 1 5 . 0 mg / L of sulfate into

A mining operation discharges 1.2 m^3/s of wastewater containing 15.0 mg/L of sulfate into a
river. The river has a flow rate of 40.0 m^3/s before the discharge, with a background sulfate
concentration of 0.050 mg/L. What is the resulting sulfate concentration in the river
downstream of the discharge?

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