| 一元弱酸平衡计算中忽略水的离解的一般判别式及其应用 |
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| 引用本文： | 孙祥贤,成和平.一元弱酸平衡计算中忽略水的离解的一般判别式及其应用[J].江西科学,1988(2). |
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| 作者姓名： | 孙祥贤 成和平 |
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| 作者单位： | 江西省萍乡教育学院化学系 萍乡
(孙祥贤)，江西省萍乡教育学院化学系 萍乡(成和平) |
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| 摘 要： | 从误差概念出发,提出与忽略水的离解的相对误差(E_W),弱酸离解常数(K_0)~2关联的H~+]近似计算的一般判别式:C_(HA)>(1-E_W)(H~+]_r+K_W/(E_W·K_0))。并应用此判别式,提出一种关于极稀或极弱酸水溶液H~+]计算式的选择方法。
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| 关 键 词： | 一元弱酸 氢离子浓度计算 判别式 |
DISCRIMINATION EQUATION FOR NEGLECTING DISSOCIATION OF WATER IN APPROXIMATION CALCULATION OF HYDROGEN IONIC CONCENTRATION OF WEAK MONOPROTIC ACID AND ITS APPLICATION |
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| Sun Xianxiang and Cheng Heping.DISCRIMINATION EQUATION FOR NEGLECTING DISSOCIATION OF WATER IN APPROXIMATION CALCULATION OF HYDROGEN IONIC CONCENTRATION OF WEAK MONOPROTIC ACID AND ITS APPLICATION[J].Jiangxi Science,1988(2). |
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| Authors: | Sun Xianxiang and Cheng Heping |
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| Abstract: | The discrimination equation for neglecting dissocition of water in approximate calculation of hydrogen ionic concentration of weak monoprotic
acid,CHy>(l- Ew,),has been presented and can be applied to
an establishment of the approximate formuiae for the calculation of hydrogen ionic concentration in extreme dilute or weak acid solution. |
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| Keywords: | Weak monoprotic acid Calculation of hydrogen ionic conc- entration Discrimination equation |
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