The addition of hydrofluoric acid and __________ to water produces a buffer solution. A)HCl B)NaNO₃ C)NaF D)NaCl E)NaBr

Question

Quizplus · Accepted Answer

When hydrofluoric acid is added to water, it partially dissociates to form fluoride ions (F-) and hydronium ions (H3O+). Adding a salt of the conjugate base of the acid, such as sodium fluoride (NaF), to the solution can create a buffer. In this case, the fluoride ion acts as the conjugate base of the weak acid, and the hydronium ion acts as the weak acid. This can help maintain the pH of the solution, even if an acid or base is added to it. None of the other options listed would form a buffer solution in this context.

The Addition of Hydrofluoric Acid and __________ to Water Produces