A farmer applies 1400.0 kg of a fertilizer that contains 10.0% nitrogen to his fields each year. 15.0% of the fertilizer washes into a river that flows through the farm.
If the river flows at an average rate of 0.225 cubic feet per second, what is the additional concentration of nitrogen (in milligrams per liter) in the river water due to the farmers fertilizer. (for a year)