12. Calculate the pH of the M NaOH aqueous solutions at 25°C. (A) pH ≈ 2.0 (B) pH ≈ 12 (C) pH ≈ 4.0 (D) pH ≈ 6.0 (E) pH ≈7.0
12. Calculate the pH of the M NaOH aqueo..-阿摩線上測驗