The equilibrium constant (K c ) for the reaction of a weak acid HA with strong base NaOH…
Chemistry · JEE Advanced · NTA Exams — Equilibrium
The equilibrium constant (Kc) for the reaction of a weak acid HA with strong base NaOH is 109 at 25ºC. Which of the following are correct deduction ?
- The ionization constant (Ka) at 25ºC is 10–5 for HA.
- pH of a 0.01 M aqueous solution of HA at 25ºC will be 3.5
- pH of a 0.10 M aqueous solution of NaA at 25ºC will be 9.
- If Kb of a weak base BOH is 10–4 at 25ºC, equilibrium constant for neutralization of HA with BOH at 25ºC will be 10–5
Answer
(A) The ionization constant (K a ) at 25ºC is 10 –5 for HA., (B) pH of a 0.01 M aqueous solution of HA at 25ºC will be 3.5, (C) pH of a 0.10 M aqueous solution of NaA at 25ºC will be 9., (D) If K b of a weak base BOH is 10 –4 at 25ºC, equilibrium constant for neutralization of HA with BOH at 25ºC will be 10 –5
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