What is the pH of a 1.0 M aqueous solution of Na₂SO₃? K_a1 = 1.3 × 10^-2,K_a2 = 6.2 × 10^-8? A)6.8 B)7.2 C)7.0 D)10.4 E)3.6

Question

Quizplus · Accepted Answer

The given compound is a dibasic acid with two dissociation constants (Ka1 = 1.3 × 10^-2 and Ka2 = 6.2 × 10^-8). When dissolved in water, it dissociates into Na+ and the acid anion, which then partially dissociates into H+ and the corresponding base, affecting the pH. The pH is not directly given by the dissociation constants due to the dibasic nature and the complete dissociation of Na+. However, the presence of Na+ indicates the solution is basic due to the hydrolysis of the anion, leading to a pH greater than 7. The correct pH value, considering the basic nature and the given dissociation constants, is calculated to be 10.4, indicating a basic solution.

What Is the PH of a 1