Posted by **Unknown** on Tuesday, January 22, 2013 at 12:59pm.

A farmer applies 13.50 kg of a fertilizer that contains 10.0% nitrogen to his fields each year. Fifteen (15.0%) percent of the fertilizer washes into a river that runs through the farm.

If the river flows at an average rate of 0.265 cubic feet per second. What is the additional concentration of nitrogen (expressed in milligrams of nitrogen per liter) in the river water due to the farmer's fertilizer?

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