You Have 100 $\times$ 10^-10
K_a for HF = 7 $\times$ 10^-4
K_a for HC₂H₃O₂ = 1

You have 100.0 mL of 0.100 M aqueous solutions of each of the following acids: HCN,HF,HCl,and HC₂H₃O₂.You titrate each with 0.100 M NaOH (aq) .Rank the pHs of each of the solutions when each are titrated to the equivalence point,from highest to lowest pH. K_a for HCN = 6.2 $\times$ 10^-10
K_a for HF = 7.2 $\times$ 10^-4
K_a for HC₂H₃O₂ = 1.8 $\times$ 10^-5

A) HCN,HC₂H₃O₂,HF,HCl
B) HCl,HF,HCN,HC₂H₃O₂
C) HF,HCN,HC₂H₃O₂,HCl
D) HC₂H₃O₂,HCl,HCN,HF
E) none of these