1. Explain why an object whose color is purple actually absorbs visible light in the green wavelength region.

2. If the concentration of an unknown solution we were studying in a Beer's Law experiment were higher than the range of concentrations used to prepare the standard plot, suggest how we could determine its concentration. Suggest possible limitations.

3. A solution containing 0.010 moles of some copmlex ion in 100.0mL of solution was observed to transmit 65/0% of the incident light compared to an appropriate blank. a) what is the absorption of the solution at this wavelength? b) what fraction of light would be transmitted by a solution four times as concentrated?

4. A sample in a 1.0 cm cell is determined to transmit 80.0% of the light at a fixed wavelength. If the molar absorptivity of this substance at this wavelength is 2.3, what is the concentration of the substance?

5. a) what are the factors that could lead to deviations from Beer's law? b) Name at least three factors that could lead to experimental errors in the measurements made in this experiment.