Python在酸碱滴定分析教学中的应用

李伟, 李鑫, 贾树恒, 白海鑫, 赵士举, 吴璐璐, 张海燕, 范彩玲

Application of Python in the Teaching of Acid-Base Titration Analysis

Wei Li, Xin Li, Shuheng Jia, Haixin Bai, Shiju Zhao, Lulu Wu, Haiyan Zhang, Cailing Fan

表1 NaOH滴定等浓度不同强度一元弱酸的滴定突跃范围和一阶导数曲线中的峰高值

序号 初始浓度c/(mol∙L−1) 计量点浓度csp/(mol∙L−1) 解离常数Ka 滴定突跃范围 ΔpH 峰高值h/(pH unit∙mL−1) (1) 0.200 0.100 1.0 × 10−7 9.79–10.21 0.42 10.7 (2) 0.020 0.010 1.0 × 10−6 8.79–9.21 0.42 10.7 (3) 0.004 0.002 5.0 × 10−6 8.09–8.51 0.42 10.7 (4) 0.002 0.001 1.0 × 10−5 7.79–8.21 0.42 10.7 (5) 0.0004 0.0002 5.0 × 10−5 7.16–7.54 0.38 9.6 (6) 0.002 0.001 1.0 × 10−4 7.00–8.04 1.04 30.2 (7) 0.002 0.001 1.0 × 10−3 6.29–8.01 1.72 57.9 (8) 0.002 0.001 1.0 × 10−2 6.04–8.00 1.96 69.6 (9) 0.002 0.001 ≥ 1.0 × 10−1 6.00–8.00 2.00 71.3