Is Ammonium nitrate (NH4NO3) polar or nonpolar? - Polarity of NH4NO3

Home  > Chemistry Questions > NH4NO3 polar or nonpolar?

The question is –

Is NH4NO3 polar or non-polar?


NH4NO3 is polar in nature.   


Ammonium nitrate (NH4NO3) is an ionic compound composed of ammonium (NH4+) and nitrate (NO3) ions. All ionic compounds are polar in nature.

The ammonium (NH4+) ion is a non-polar molecular ion. It comprises a nitrogen (N) atom present at the center, surrounded by 4 hydrogen (H) atoms in a symmetrical tetrahedral arrangement and molecular geometry.

 Each N-H bond is polar as per an electronegativity difference of 0.84 units between the single covalently bonded nitrogen (E.N = 3.04) and hydrogen (E.N = 2.20) atoms.

However, the four N-H dipole moments get canceled in the symmetrical molecular shape to yield an overall non-polar molecular ion (net µ = 0).

On the other hand, the nitrate (NO3) ion is trigonal planar in shape with three polar N-O bonds having an electronegativity difference of 0.40 units between the respective nitrogen and oxygen (E.N = 3.44) atoms.

The N-O dipole moments get canceled equally in this symmetrical molecular shape. Thus, NO3 is also overall non-polar (net µ = 0).

However, +1 and -1 formal charges are present on the ammonium and nitrate ions, respectively.

Thus, the ionic compound NH4NO3 is overall polar as it consists of oppositely charged ions held together by strong electrostatic forces of attraction.

Is Ammonium nitrate (NH4NO3) polar or nonpolar

How to know if a molecule is polar or nonpolar?

Did you like it?

About the author

Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. He holds a degree in B.Tech (Chemical Engineering) and has four years of experience as a chemistry tutor. The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. A passion for sharing knowledge and a love for chemistry and science drives the team behind the website. Let's connect through LinkedIn:

Share it...

Leave a Comment

Your email address will not be published. Required fields are marked *

About Topblogtenz

Topblogtenz is a website dedicated to providing informative and engaging content related to the field of chemistry and science. We aim to make complex subjects, like chemistry, approachable and enjoyable for everyone.

Connect with us

Copyright © 2023 - All rights Reserved

Scroll to Top