Select the INCORRECT statement. Select one: O a. All matter exhibits properties of both particles and waves. O b. Light behaves like a wave when it produces a diffraction pattern. OC. Electrons can have a particle nature but cannot have a wave nature. O d. When an atom emits energy n < n. O e. Radio waves have lower energy than visible light.

What is the % transmittance when the absorbance is 1.67

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B.  Quantitative Spectroscopy   Prepare two graphs, %T vs. Concentration and Absorbance vs. Concentration, using the data for the cobalt standards.  The concentrations of Cobalt standards 2-4 can be calculated using simple dilution calculations. Concentration should be on the x-axis for each of these graphs.  The first should clearly show some curvature while the second should be a linear curve. Using the absorbance graph you can determine the concentration of the unknown. Take the absorbance value for the unknown and find that value on the y-axis.  Draw a horizontal line from that point on the y-axis to the plotted line.  From the point where the horizontal line intersects the plotted line, draw a vertical line straight down to the x-axis.  Record the value from the point where you hit the x-axis as the unknown concentration.