siri6350 siri6350 14-05-2024 Chemistry Answered Which of the following is true (to a good approximation) for a 0.10 M solution of a weak acid, HA, with a Ka of 10-4 ? A) [H+] = [A-] B) [A-] = [OH-] C) [HA] = [OH-] D) [H+] = [OH-] E) pH> 7 F) pH<7