Question

1. A buffer solution includes a weak acid and its conjugate base.
Write a balanced chemical equation for the equilibrium reaction occurring in a buffer containing NH3 and NH4Cl. Write the equation so that its equilibrium constant is equivalent to Ka. include states of matter.

Answer 1

Answer: $NH_4^+ aq+H_2O\iff NH_3 aq+H_3O^+ aq$

$K=[NH_3][H_3O^+]/[NH_4^+]$