A solution of 2M formic acid (HCOOH) is 0.95% ionized. What is the K a of formic acid ?
Chemistry · JEE Advanced · NTA Exams — Equilibrium
A solution of 2M formic acid (HCOOH) is 0.95% ionized. What is the Ka of formic acid ?
- 1.9 × 10–2
- 1.8 × 10–4
- 9 × 10–5
- 4.5 × 10–5
Answer
(B) 1.8 × 10 –4
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- For the overall reaction H _ 2 ~S ( aq ) 2 H ^ + ( aq )+ S ^ 2- ( aq ) , the value of K a is 1×10 –22 . The K…
- Solubility of a substance which dissolves with a decrease in volume and absorption of heat will be favoured by
- Assertion : For a reaction at equilibrium, the free energy for the reaction is minimum. Reason : The free…
- Which of these aqueous solutions are buffers ? 1 . A solution that is 0.1 M HNO 3 and 0.1 M HCl. 2 . A…
- The pair of compounds which cannot exist together in solution is
- For the reaction, [Ag(CN) 2 ] – ⇌ Ag + + 2CN – , the equilibrium constant K c at 25ºC is 4 × 10 –19 ; then Ag…
- Equilibrium constant K c for the following reaction at 800K is, 4. NH _ 3 1 2 ~N _ 2 + 3 2 H _ 2 ; The value…
- The precipitate of CaF 2 (K sp = 1.7 × 10 –10 ) is obtained, when equal volumes of the following are mixed…