Calculate either [H3O+] or [OH-] for each of the solutions.
Solution A: [OH-]=1.51×10-7 M; [H3O+]=M
Solution B: [H3O+]=9.61×10-9 M; [OH-]=M
Solution C: [H3O+]=7.29×10-4 M; [OH-]=M
Which of these solutions are basic at 25 °C?
Solution A: [OH-]=1.51×10-7 M
Solution B: [H3O+]=9.61×10-9 M
Solution C: [H3O+]=7.29×10-4 M