What is the Ka for HNO2?
What is the Ka for HNO2?
The Ka value of nitrous acid, HNO2, is 4.0 x 10^-4.
How do you write Ka expression?
General Ka expressions take the form Ka = [H3O+][A-] / [HA]. General Kb expressions take the form Kb = [BH+][OH-] / [B]. When using Ka or Kb expressions to solve for an unknown, make sure to write out the dissociation equation, or the dissociation expression, first.
What is the Ka expression for acetic acid?
The equilibrium constant for this expression is called the acid dissociation constant, Ka….
| Weak Acid | Equation | Ka |
|---|---|---|
| acetic acid | HC2H3O2 H+ + C2H3O2- | 1.8 × 10-5 |
| benzoic acid | C6H5CO2H H+ + C6H5CO2- | 6.4 × 10-5 |
| chlorous acid | HClO2 H+ + ClO2- | 1.2 × 10-2 |
What is the equilibrium constant for the neutralization of nitrous acid with ammonia?
Question: What Is The Approximate Value Of The Equilibrium Constant, Kn, For The Neutralization Of Nitrous Acid With Ammonia, Shown In The Equation Below? The Ka For HNO2 Is 4.5 X 10-4 And The Kb For NH3 Is 1.8 X 10-5.
What is acid and base equilibrium?
Acids and bases have a chemical equilibrium in solution. At chemical equilibrium, the products and reactants have reached a state of balance. Concepts related to acid base equilibrium include designing buffers and plotting pH curves. …
Why is a reaction involving a strong acid not considered an equilibrium reaction?
In a strict sense the strong acid do “have an equilibrium” because any reaction you can write down and balance will have an equilibrium constant, calculable through Nernst equation. However, the equilibrium is inconsequential unless in extreme conditions. Any acid with pKa<0, or equivalently Ka>1 is a strong acid.
Which of the following is strong acid and strong base reaction?
An example of this would be the titration of hydrochloric acid (strong acid) and sodium hydroxide (strong base) to form sodium chloride and water. Created by Jay.
What happens when a weak acid reacts with a strong acid?
A strong acid will react with a strong base to form a neutral (pH = 7) solution. A weak acid will react with a strong base to form a basic (pH > 7) solution.