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題名 | A New Method for the Simulation of Acid-Base Titration Curves=酸﹣鹼滴定曲線模擬的新方法 |
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作者 | 張煜光; 葉春祥; |
期刊 | 明志工專學報 |
出版日期 | 19900500 |
卷期 | 22 1990.05[民79.05] |
頁次 | 頁59-69 |
分類號 | 341 |
語文 | eng |
關鍵詞 | 曲線; 滴定; 酸鹼; 模擬; |
中文摘要 | 處理酸-鹼平衡問題在分析化學課程上具有相當的重要性。推導複雜酸-鹼滴定曲線,傳統以Netwon-Raphson方法求此高階方程式之解[H⁺],不但繁複且試誤法求解的誤差很大。本研究在IBM PC AT/XT下以BASIC語言發展出一套簡單而通用的交談式電腦輔助教學程式。文中採用簡易而精確的線性方程式,即設定溶液pH值,直接求得所需的滴定劑體積,藉以改進Netwon-Raphson求解的限制與缺失。依所發展的電腦程式設計,此教學軟體工具是採格式驅動方式,選擇所需的酸-鹼滴定曲線,利用個人電腦輸入基本資料,即可繪出滴定曲線,並記錄整個滴定過程所需滴定劑體積、鋞離子濃度和pH值。 |
英文摘要 | The treatment of acid-base equilibrium in aqueous solution has been an important part of the analytical chemistry curriculum. In general, there are needed in calculating the hydronium ion concentration or pH of the solution after each addition of titrant and ploting pH as a function of titrant volume in the entire acid-base titration curve. The traditional Netwon – Raphson method for solving a higher-order polynominal for [H⁺] is not only complicated but also introduces remarkable errors. In order to solve the algebraic complexity of acid-base equilibrium, a generalized interactive mode computer – assisted instruction (CAI) program has been developed in BASIC with IBM PC AT/XT. A simplified and accurate linear equation is employed in this article for direct calculation of titrant volume with given pH. According to developing the form-driven computer program design, we can choose any type of acid-base titration curve. The computer accepts user input data. The outputs of this computing program automatically generate a drawing of titration curve, volume of titrant, concentration of hydronium ion, and pH value throughout titration system. |
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