Is Sodium hydroxide (NaOH) polar or non-polar? – Polarity of NaOH
The question is –
Is NaOH polar or non-polar?
Answer:
⇒ NaOH is extremely polar (net µ = 6.83 Debye).
Explanation:
Sodium hydroxide (NaOH) is extremely polar in nature as it is an ionic compound composed of oppositely charged sodium (Na+) and hydroxide (OH–) ions.
Ionic compounds are always polar in nature.
The hydroxide (OH–) ion is a polar molecular ion as it comprises of an oxygen (E.N = 3.44) and a hydrogen (E.N = 2.20) atom, having an electronegativity difference of 1.24 units.
The strong O-H dipole moment stays intact in the linear molecular shape to yield an overall polar OH– ion (net µ > 0).
Sodium being a metal, possesses a low electronegativity value (E.N = 0.93).
Oppositely charged Na+ and OH– ions are held together by strong electrostatic forces of attraction in each NaOH unit cell to produce an extremely polar ionic compound with a high resultant dipole moment value.
Also, check –
⇒ How to know if a molecule is polar or nonpolar?
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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: https://www.linkedin.com/in/vishal-goyal-2926a122b/