Calculate either [H3O+] or [OH-] for each of the solutions at 25 °C.

Solution A: [OH-] = 1.93 x 107 M; [H₂O*] =
Solution B: [H₂O+] = 8.85 × 10⁹ M; [OH-] =
Solution C: [H3O+] = 6.35 x 104 M; [OH™] =