1. Nitrogen in an industrial wastewater is primarily in the form of ammonia (NH3) and ammonium (NH4+) ions. The acid/baseequilibrium reaction for ammonia and ammonium is given as:NH4+ → H+ + NH3Ką = 10-9.26The total nitrogen concentration in wastewater is given as 2 x 10-3 moles/L (or 28 mg N/L),a. Calculate the concentration of ammonia (NH3) and ammonium (NH4*) ions at pH 10.NH3:moles/LNH4*:moles/LCheckb. In ammonia stripping, nitrogen is removed from wastewater by volatilization of NH3. Would ammonia stripping be moreeffective above or below pH 9? Briefly explain your reasoning.

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Answered: In ammonia stripping, hitrogen is…

In ammonia stripping, hitrogen is removed from wastewater by volatilization of NH3. Would ammonia stripping b Ffective above or below pH 9? Briefly explain your reasoning.

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter8: Solutions

Section: Chapter Questions

Problem 8.76EP

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Question

1. Nitrogen in an industrial wastewater is primarily in the form of ammonia (NH3) and ammonium (NH4+) ions. The acid/base
equilibrium reaction for ammonia and ammonium is given as:
NH4+ → H+ + NH3
Ką = 10-9.26
The total nitrogen concentration in wastewater is given as 2 x 10-3 moles/L (or 28 mg N/L),
a. Calculate the concentration of ammonia (NH3) and ammonium (NH4*) ions at pH 10.
NH3:
moles/L
NH4*:
moles/L
Check
b. In ammonia stripping, nitrogen is removed from wastewater by volatilization of NH3. Would ammonia stripping be more
effective above or below pH 9? Briefly explain your reasoning.

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