题目
用2.0 times 10^-2 mol/L的EDTA滴定同浓度的Zn2+溶液，已知lg K_({ZnY)} = 16.5，Delta (pM) = 0.2，(Et) = 0.1%，则最高酸度为（2分）A. lg aY(H) = 16.5B. lg aY(H) = 4C. lg aY(H) = 8.5D. lg aY(H) = 7
用$2.0 \times 10^{-2}$ mol/L的EDTA滴定同浓度的Zn2+溶液，已知$\lg K_{\text{ZnY}} = 16.5$，$\Delta \text{pM} = 0.2$，$\text{Et} = 0.1\%$，则最高酸度为（2分）
A. $\lg aY(H) = 16.5$
B. $\lg aY(H) = 4$
C. $\lg aY(H) = 8.5$
D. $\lg aY(H) = 7$
题目解答
答案
C. $\lg aY(H) = 8.5$