The following figure illustrates the action of a HF and F ^- buffer where the sizes of the boxes are proportional to the concentrations of HF and F ^- in solution. Which of the following chemical equations represents the reaction that occurs when ^-OH is added to the HF/F ^- buffer? A) HF + H₂O F ^- + H₃O⁺ B) F ^- + H₂O F ^- + ^- OH C) HF + ^- OH F ^- + H₂O D) F ^- + 2 ^- OH HF + O₂ E) F ^- + ^- OH HOF

Question

Quizplus · Accepted Answer

The addition of ^-OH suggests the presence of a basic compound that will react with the acidic HF to form a salt and water. The only choice that includes a basic compound reacting with HF to form a salt is C, where F1F1F1S1^F1F1F10OH acts as the base and reacts with HF to form F1F1F1S1^F1F1F10 (as the salt) and water.

The Following Figure Illustrates the Action of a HF and F