What is the Ka of nitrous acid?
Table of Contents
What is the Ka of nitrous acid?
| Ka | Acid | |
|---|---|---|
| 1.0 * 10-2 | Hydrogen sulfate ion | HSO4 – |
| 7.1 * 10-3 | Phosphoric acid | H3PO4 |
| 7.2 * 10-4 | Nitrous acid | HNO2 |
| 6.6 * 10-4 | Hydrofluoric acid | HF |
How acidic is nitrous acid?
Nitrous acid
| Names | |
|---|---|
| Appearance | Pale blue solution |
| Density | Approx. 1 g/ml |
| Melting point | Only known in solution or as gas |
| Acidity (pKa) | 3.15 |
What is the basicity of nitrous acid?
Monobasic: Since Nitrous acid HNO2 has only one hydrogen ion which it can donate to a base in case of a reaction between an acid and a base, it is known as a monobasic acid. It can release only one proton, i.e., H+ in solution.
What is the formula for nitrous acid?
HNO2
Nitrous acid/Formula
What is formula of nitrous acid?
Why is nitrous acid a weak acid?
Every acid reacts with water. When it loses a proton, it transfers that proton to water. Let’s look at the reaction of a strong acid, nitric acid or HNO3, and a weaker acid, nitrous acid or HNO2, in water. Nitric acid is a stronger acid than nitrous acid because its conjugate base is more stable.
What is pKa and pH?
The pH is a measure of the concentration of hydrogen ions in an aqueous solution. Essentially, pKa tells you what the pH needs to be in order for a chemical species to donate or accept a proton. The relationship between pH and pKa is described by the Henderson-Hasselbalch equation.
What are the properties of nitrous acid?
Physical Properties of Nitrous Acid – HNO2
| Odour | Unpleasantly bitter or pungent |
|---|---|
| Appearance | Pale blue solution |
| Specific Density | 1.35 g/cm3 |
| Systematic name | Dioxonitric(III) acid |