What Is the PH of a Solution That Consists of 0.25

Multiple Choice

What is the pH of a solution that consists of 0.25 M HC₂H₃O₂ and 0.35 M NaC₂H₃O₂?
K _a(HC₂H₃O₂) = 1.8×10 ^{- 5}

A) 0.60
B) 4.60
C) 4.89
D) 5.50
E) 6.07