A Solution of Total Volume 0

A solution of total volume 0.50 L was prepared by the addition of 0.10 moles of KF to sufficient water. From the following, select the major species and the pH of the solution.

A) K⁺, HF; H O^-, H₂O, pH = 8.23
B) K⁺, F^-; H⁺, H₂O, pH = 5.76
C) K⁺, H₂O, F^-, pH = 8.23
D) K⁺, H₂O, F^-, pH = 5.76
E) KF, H₃O⁺, 6.27