Color and absorption spectra. Color Plate 15 shows colored solutions and their spectra. From Table 17-1, predict
Question:
Color and absorption spectra. Color Plate 15 shows colored solutions and their spectra. From Table 17-1, predict the color of each solution from the wavelength of maximum absorption. Do observed colors agree with predicted colors?
Table 17-1
TABLE 17-1 Colors of visible light Wavelength of maximum absorption (nm) Color Color absorbed observed 380-420 Violet Green-yellow 420-440 Violet-blue Yellow 440-470 Blue Orange 470-500 500-520 Red Blue-green Green Purple 520-550 Yellow-green Violet 550-580 Yellow Violet-blue 580-620 Orange Blue 620-680 Red Blue-green 680-780 Red Green
Step by Step Answer:
Curve A B D E F Absorption peak nm 760 ...View the full answer
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Using a few basic physics principles, you can impress your friends with a trick that makes a bottle disappear. For this experiment, you will need a mini plastic bottle, glycerin, a glass, and a funnel. First, open the bottle and pour some glycerin into it, then close the bottle tightly. Next, pour some water into the glass using a funnel. Place the mini bottle into the glass of water and it will look normal. This is because light travels through air faster than it travels through the glass and water, allowing our eyes to see the bottle inside the glass. However, when you fill the mini bottle with more glycerin, and pour glycerin into the glass, then put the glycerin filled bottle into the glass with glycerin in it. Half of the bottle that is submerged in the glycerin will become invisible as the light travels through glass and glycerin at the same speed, thus it does not bend and no refraction takes place, making the bottle invisible. This happens because both glass and glycerin have almost the same refractive index, which causes the speed of light to be the same in both mediums, causing no bending of light and making the bottle disappear.
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