Computer · Environmental Engineering
A wastewater sample contains two nitrogen species: ammonia and nitrate. The atomic weights of N, H, and O are 14 g/mol, 1 g/mol, and 16 g/mol, respectively. If the concentration of ammonia is 34 mg NH3/liter and that of nitrate is 6.2 mg entertainment NO3-/liter, what is the total nitrogen concentration in this wastewater in milligram nitrogen per liter (mg N/L)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 134.0 mg N/L
- 229.4 mg N/L✓
- 328.0 mg N/L
- 426.4 mg N/L
Correct answer
29.4 mg N/L
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