This is a random data set to be used in the Beer's Law exercise for Chem 311. Note that each time you load this page, the data will change! So pick just one set of data and go with it!
From the data below, you should construct four Beer's Law calibration curves, in order to determine extinction coefficients for compounds A and B (the two must studied compounds in all of chemistry!) at wavelengths 1 and 2. Use these results to determine the concentrations of A and B in your unknown mixture.
Your results should be organized into an excel workbook that can be easily interpreted by someone who has not read the assignment.
| Compound A | λ1 | λ2 |
|---|---|---|
| Concentration (M) | Absorbance | |
| 0.100 | 0.083 | 0.012 |
| 0.200 | 0.167 | 0.030 |
| 0.300 | 0.249 | 0.042 |
| 0.400 | 0.331 | 0.055 |
| 0.500 | 0.414 | 0.070 |
| Compound B | λ1 | λ2 |
|---|---|---|
| Concentration (M) | Absorbance | |
| 0.100 | 0.019 | 0.053 |
| 0.200 | 0.043 | 0.107 |
| 0.300 | 0.063 | 0.161 |
| 0.400 | 0.084 | 0.211 |
| 0.500 | 0.103 | 0.265 |
| Unknown | |
|---|---|
| λ1 | λ2 |
| Absorbance | |
| 0.480 | 0.221 |