How would you approach calculating the pH of a solution with a fully protonated polyprotic acid with an initial concentration of 0.05 M and K_a1 = 1.0 x 10^-3?

• A. Use the ICE chart method with K_a1 to find [H⁺], then calculate pH using pH = -log([H⁺]).
• B. Use the ICE chart method with K_a2 to find [H⁺], then calculate pH using pH = -log([H⁺]).
• C. Use the ICE chart method with K_a3 to find [H⁺], then calculate pH using pH = -log([H⁺]).
• D. Use the ICE chart method with K_b1 to find [OH^-], then calculate pH using pH = 14 - pOH.

Answer: (A)