Question

Find the pH and Concentration of H2SO3, HSO3-, and (SO3)2-

a) 0.050M H2SO3
b) 0.050M NaHSO3
c) 0.050M Na2SO3

Answer 1

For a 0.050 M solution of H2SO3, the concentrations of H+ and SO32- are also 0.050 M. For a 0.050 M solution of NaHSO3, the concentrations of H+ and SO32- are 0.050 M and 0.050 M, respectively. For a 0.050 M solution of Na2SO3, the concentration of (SO3)2- remains 0.050 M.

Step-by-step explanation:

To find the pH and concentration of H2SO3, HSO3-, and (SO3)2-, we need to understand how these compounds dissociate in water.

H2SO3 dissociates into two H+ ions and one SO32- ion. Therefore, it has a concentration of 0.050 M for both H+ and SO32-.

HSO3- dissociates into one H+ ion and one SO32- ion. Therefore, it has a concentration of 0.050 M for H+ and 0.050 M for SO32-.

(SO3)2- does not dissociate in water, so its concentration remains 0.050 M.