![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
用电动势法测定丁酸的解离常数。在298K时安排成如下电池: Pt|H2()|HA(m1),NaA(m2),NaCl(m3)|AgCl(s)|Ag(s)
用电动势法测定丁酸的解离常数。在298K时安排成如下电池:
Pt|H2(p。)|HA(m1),NaA(m2),NaCl(m3)|AgCl(s)|Ag(s)
其中HA为丁酸,NaA为丁酸钠。实验数据如下:
m1/(mol·kg-1) | m2/(mol·kg-1) | m3/(mol·kg-1) | E/V |
0.00717 | 0.00687 | 0.00706 | 0.63387 |
0.01273 | 0.01220 | 0.01254 | 0.61922 |
0.01515 | 0.01453 | 0.01493 | 0.61501 |
试求HA==H+
+ A-的平衡常数Kθ。设活度因子均为1。![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)