Predict the direction of the following equilibrium and the approximate value of Keq.
ArCOOH + $N H_{3}$ $⇌$ $ArCO O^{-}$ + $N H_{4}^{+}$ ( $p K_{a}$ ≈ 4 and ≈ 9)

Question

Predict the direction of the following equilibrium and the approximate value of Keq. ArCOOH + N H 3 ​ ⇌ ArCO O − + N H 4 + ​ ( p K a ​ ≈ 4 and ≈ 9)

TestHub · Accepted Answer

The acid on the left is the carboxylic acid ( p K a ​ ≈ 4) and the acid on the right is the ammonium ion ( p K a ​ ≈ 9). The weaker acid is on the right, so the products are favoured. Keq ≈ 1 0 9 − 4 = 1 0 5 ⋅

Chemistry - GOC Question with Solution | TestHub

Options:

Doubts & Discussion