Table 4. Comparison between Potentiometric and Spectrophotometric Results in NaCl at I = 0.15 mol L–1 and T = 298.15 K.
| log βa |
||
|---|---|---|
| species | potentiometric results | spectrophotometric results |
| MLH3 | 29.97 ± 0.08 | 30.27 ± 0.04 |
| MLH2 | 25.87 ± 0.09 | 26.32 ± 0.03 |
| MLH | 16.59 ± 0.09 | 17.16 ± 0.02 |
β refers to the overall reaction M + L + iH = MLHi (charges omitted for simplicity); ±standard deviation.