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Nitrogen and Its Various Forms

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Questions and Answers

What is the chemical formula for Ammonium ion?

$NO_3^-$

$TAN$

$NH_3$

$NH_4^+$ (correct)

Which of the following represents Total Kjeldahl nitrogen?

$TKN - (NH_4^+)$

$Organic ext{ N} + NH_3 + NH_4^+$ (correct)

$TAN + NO_2^- + NO_3^-$

$Organic ext{ N} + NO_2^- + NO_3^-$

Which of the following forms is not included in Total inorganic nitrogen (TIN)?

$Organic ext{ N}$ (correct)

$NO_2^-$

$NO_3^-$

$NH_3$

What is the abbreviation for Total ammonia nitrogen?

TAN Signup and view all the answers

What does Total nitrogen (TN) consist of?

$Organic ext{ N} + NH_3 + NH_4^+ + NO_2^- + NO_3^-$ Signup and view all the answers

What is the abbreviation for Total Kjeldahl Nitrogen?

TKN Signup and view all the answers

Which of the following is included in Total Inorganic Nitrogen?

Ammonia gas Signup and view all the answers

What does Organic Nitrogen represent in the context provided?

TKN minus NH3 and NH4+ Signup and view all the answers

Which form of nitrogen is represented by the abbreviation NO2-?

Nitrite Signup and view all the answers

What is included in Total Ammonia Nitrogen (TAN)?

NH3 and NH4+ Signup and view all the answers

Study Notes

Forms of Nitrogen

Ammonia Gas (NH3): A gaseous form of nitrogen.
Ammonium Ion (NH4+): A positively charged ion derived from ammonia.
Total Ammonia Nitrogen (TAN): Sum of ammonia gas and ammonium ion (NH3 + NH4+).

Nitrogen Compounds

Nitrite (NO2-): An inorganic form of nitrogen presented as a negatively charged ion.
Nitrate (NO3-): Another inorganic nitrogen form, also negatively charged.

Inorganic and Organic Nitrogen

Total Inorganic Nitrogen (TIN): Combines ammonia gas, ammonium ion, nitrite, and nitrate (NH3 + NH4+ + NO2- + NO3-).
Total Kjeldahl Nitrogen (TKN): Measures organic nitrogen, ammonia gas, and ammonium ion (Organic N + NH3 + NH4+).
Organic Nitrogen: Calculated by subtracting the sum of ammonia and ammonium from TKN (TKN - (NH3 + NH4+)).

Total Nitrogen

Total Nitrogen (TN): The comprehensive measurement encompassing all nitrogen forms (Organic N + NH3 + NH4+ + NO2- + NO3-).

Testing Importance

The TKN test is critical for determining total nitrogen levels in raw municipal sewage, focusing on non-oxidized nitrogen.

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Description

Explore the different forms of nitrogen in this quiz. Understand the definitions and chemical symbols of nitrogen compounds such as ammonia, nitrite, and nitrate. This quiz will test your knowledge on both inorganic and organic nitrogen forms.