Fill in the data table for the graph of A vs. wavelength.
| Wavelength (nm) | Absorbance |
| 400 | 0.099 |
| 410 | 0.161 |
| 420 | 0.240 |
| 430 | 0.260 |
| 440 | 0.460 |
| 450 | 0.530 |
| 460 | 0.688 |
| 470 | 0.825 |
| 480 | 0.920 |
| 490 | 1.005 |
| 500 | 1.015 |
| 510 | 1.025 |
| 520 | 0.980 |
| 530 | 0.845 |
| 540 | 0.672 |
| 550 | 0.488 |
| 560 | 0.340 |
λmax =
PART III: Concentration vs. Absorbance at λmax
(Show work for the calculation of Solution C and the unknown solution, fill in the data for the graph of Concentration vs. A, showing concentration of unknown.)
| Solution | Concentration (M) | Absorbance |
| Blank | 0 | |
| A | 0.317 | |
| B | 0.626 | |
| C | 1.035 | |
| D | 1.220 | |
| E | 1.280 | |
| Unknown | ? | 0.716 |
| Concentration of diluted unknown Co(II) complex | M |
| Concentration of undiluted Co(II) unknown | M |
