The total concentration of ions in a 0.250 M solution of HCl is ________.
A)0
B)0.125 M
C)0.250 M
D)0.500 M
E)0.750 M

Question

Quizplus · Accepted Answer

HCl dissociates into H+ and Cl- ions in solution. Thus, the total concentration of ions in a 0.250 M solution of HCl would be the sum of the concentration of H+ ions and the concentration of Cl- ions. Since HCl is a strong acid, it dissociates completely in solution. Therefore, the concentration of H+ ions and the concentration of Cl- ions in the solution would be equal to 0.250 M each, giving a total concentration of ions of 0.500 M (0.250 M + 0.250 M = 0.500 M). Thus, the best choice is D.

The Total Concentration of Ions in a 0