“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2
数据记录和处理
试管编号
A
10
4
c
(I
-
)/(mol·L
-1
)
10
3
b
/(mol·L
-1
)
10
3
d
/(mol·L
-1
)
${{10}^{9}}K_{\text{sp}}^{\ominus }\left( \text{Pb}{{\text{I}}_{\text{ 2}}} \right) $
1
0.217
8.3
2.49
1.24
7.7
2
0.217
8.3
2.49
1.24
7.7
3
0.215
8.3
2.49
1.24
7.7