Spectrophotometric of a Cobalt Chloride Solution Analysis
1. explain the results of the experiment
Table 1 Absorption Spectrum of Cobalt Chloride Using a Spectrophotometer
|
Wavelength |
Absorbance |
|
400 410 420 430 440 450 460 370 480 490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 |
0.036 0.044 0.063 0.095 0.147 0.215 0.284 0.329 0.362 0.402 0.450 0.479 0.464 0.398 0.314 0.216 0.142 0.087 0.054 0.041 0.036 0.036 0.034 0.028 0.030 0.023 0.023 0.023 0.014 0.014 0.011
|
|
Test Tube Number |
Cobalt Chloride Concentration (mol/mL) |
Absorbance at 510 nm |
|
|
|
|
|
1 |
0.000 |
0.000 |
|
2 |
0.009 |
0.042 |
|
3 |
0.018 |
0.92 |
|
4 |
0.027 |
0.139 |
|
5 6 |
0.036 0.045 |
0.190 0.236 |
|
7 |
(Unknown) |
0.151
|
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