What is the equilibrium concentration of chloroacetic acid, HC2H2O2Cl, in a solution prepared by dissolving 0.0277 mol of HC2H2O2Cl in 1.00 L of water? For chloroacetic acid, Ka = 1.4 × 10-3.
A. 2.21 × 10-2 M
B. 2.77 × 10-2 M
C. 6.23 × 10-3 M
D. 1.39 × 10-2 M
E. 5.57 × 10-3 M