if the concentration of NO3- in the water is uniformly 5 microMolar, how many moles of N are there per square meter?

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asked by Nelly
  1. There is 1 mole N in 1 mol NO3^-.
    5 micromolar = 5 x 10^-6 mols N/L
    5 x 10^-6 mols N/L x (1 L/0.001 m^3) = ?? mols N/m^3.
    I don't know how you go from cubic meters to square meters.

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    posted by DrBob222

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