通过拓展大学化学实验培养学生探索创新能力——以“硫酸铜中铜含量测定(碘量法)”为例

孙瑞卿, 许紫婷, 魏巧华

Developing Students' Exploration and Innovation Ability through Expanding University Chemistry Laboratory: Taking "Determination of Copper Content in Copper Sulfate (Iodometry)" as an Example

Ruiqing Sun, Ziting Xu, Qiaohua Wei

表6 ρ_{_Cu²⁺}含量测定平均值(g∙L⁻¹)及偏差

${c_{{\rm{CuS}}{{\rm{O}}_{\rm{4}}}}}$/(mol·L^?1)	${\rho _{{\rm{Cu}}}}$(I)/(g·L^?1)	${\rho _{{\rm{Cu}}}}$(II)/(g·L^?1)	RD/%	${\rho _{{\rm{Cu}}}}$(III)/(g·L^?1)	RD/%	${\rho _{{\rm{Cu}}}}$(IV)/(g·L^?1)	RD/%
0.025	1.568	1.568	0.00	1.561	-0.45	1.549	−1.21
0.05	3.200	3.196	−0.13	3.183	-0.53	3.187	−0.41
0.1	5.268	5.267	−0.02	5.258	-0.19	5.258	−0.19