“分光光度法测定碘化铅溶度积常数”实验存在的问题及改进
韩福芹,王丽丽,宋海岩,曹晶晶,郭丽
Solution to the Problem of Spectrophotometric Determination of the Solubility Product Constant of Lead Iodide
Fuqin HAN,Lili WANG,Haiyan SONG,Jingjing CAO,Li GUO
表3
不同温度的
$\ln K_{\text{sp}}^{\ominus } $
和1/
T
数据
T
/K
10
3
T
-1
/K
-1
${{10}^{9}}K_{\text{sp}}^{\ominus } $
$\ln K_{\text{sp}}^{\ominus } $
278
3.60
2.6
-19.77
283
3.53
3.9
-19.36
288
3.47
5.4
-19.04
293
3.41
7.5
-18.71
298
3.36
9.8
-18.44