Sodium bicarbonate () contains an amphiprotic anion. If and of carbonic acid are 6.3 and 10.3 respec — Ionic Equilibrium Chemistry Question

💡 Solution & Explanation

For an amphiprotic salt like $NaHCO_3$, the anion undergoes both ionization and hydrolysis. The pH is entirely independent of concentration and is calculated as $pH = \frac{pK_{a1} + pK_{a2}}{2} = \frac{6.3 + 10.3}{2} = 8.3$.