NaOH 剩余HCI 过量NaOH T% pH mL mL mL 0.00 0 20.0 1.00 18.00 90.0 2.00 2.28 19.80 99.0 0.20 3.00 19.98 99.9 0.02 4.30 突 20.00 100.0 0.00 0.00 7.00 范 20.02 100.1 0.02 9.70 20.20 101.0 0.20 10.70 22.00 110.0 2.00 11.68 40.00 200.0 20.00 12.52NaOH mL T% 剩余HCl mL 过量NaOH mL pH 0.00 0 20.0 1.00 18.00 90.0 2.00 2.28 19.80 99.0 0.20 3.00 19.98 99.9 0.02 4.30 20.00 100.0 0.00 0.00 7.00 20.02 100.1 0.02 9.70 20.20 101.0 0.20 10.70 22.00 110.0 2.00 11.68 40.00 200.0 20.00 12.52 突跃范围