化学平衡的近似计算
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游丹, 蔡殿红, 程清蓉
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Approximate Calculation of Chemical Equilibrium
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Dan You, Dianhong Cai, Qingrong Cheng
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表2 氨水中Ag(NH3)2+、Cu(NH3)42+和Co(NH3)62+离解平衡Er1与逼近次数的关系
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| 配合物 | c(MLn)/(mol?L?1) | c(L)/(mol?L?1) | c(Mn+)0/(mol?L?1) | c(Mn+)1/(mol?L?1) | Er1/% | c(Mn+)m/(mol?L?1) | Erm/% | | [Ag(NH3)2]+ | 0.0010 | 0.0010 | 8.928 × 10?5 | 5.854 × 10?5 | 52.5 | 6.547 × 10?5 (4) | ?1.2 | | 0.010 | 8.928 × 10?7 | 8.920 × 10?7 | 0.1 | | | | 0.010 | 0.0010 | 8.928 × 10?4 | 1.048 × 10?4 | 752.0 | 3.180 × 10?4 (23) | 1.9 | | 0.010 | 8.928 × 10?6 | 8.884 × 10?6 | 0.5 | | | | 0.10 | 0.0010 | 8.928 × 10?3 | 2.287 × 10?5 | 3.9 × 104 | | | | 0.010 | 8.928 × 10?5 | 8.610 × 10?5 | 3.7 | 8.621 × 10?5 (2) | ?0.13 | | [Cu(NH3)4]2+ | 0.0010 | 0.0010 | 4.785 × 10?5 | 2.261 × 10?5 | 111.6 | 2.980 × 10?5 (6) | ?1.5 | | 0.0020 | 2.991 × 10?6 | 2.911 × 10?6 | 2.75 | 2.913 × 10?6 (2) | ?0.07 | | 0.010 | 0.0030 | 5.907 × 10?6 | 5.722 × 10?6 | 3.23 | 5.727 × 10?6 (2) | ?0.09 | | 0.0050 | 7.656 × 10?7 | 7.637 × 10?7 | 0.25 | | | | 0.050 | 0.0025 | 6.125 × 10?5 | 4.209 × 10?5 | 45.5 | 4.613 × 10?5 (4) | ?0.85 | | 0.0050 | 3.828 × 10?6 | 3.781 × 10?6 | 1.24 | | | | [Co(NH3)6]2+ | 0.0010 | 0.20 | 1.211 × 10?4 | 1.042 × 10?4 | 16.2 | 1.064 × 10?4 (2) | ?2.1 | | 0.30 | 1.063 × 10?5 | 1.051 × 10?5 | 1.1 | | | | 0.010 | 0.20 | 1.211 × 10?3 | 8.594 × 10?4 | 40.9 | 9.325 × 10?4 (4) | ?0.70 | | 0.30 | 1.063 × 10?4 | 1.039 × 10?4 | 2.31 | 1.039 × 10?4 (2) | ≈0 | | 0.10 | 0.20 | 1.211 × 10?2 | 1.658 × 10?3 | 630.4 | 5.024 × 10?3 (26) | ?1.7 | | 0.50 | 4.961 × 10?5 | 4.941 × 10?5 | 0.4 | | |
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