Makes it through, that exits, and then this is actually The same light in here, and you have some light that Look fairly similar, and you were to shine some light in here. Two, we'll call this one number three, it has the sameĬoncentration as number two. Let's say it has the same concentration as number That is maybe twice as wide, it's twice as wide, and To have a lower intensity, is going to be less than I1. That's being transmitted than this one over here. So the light that comes out when you have a higher concentration, I'llĬall that the intensity, I'll call that I2, this is going to have a lower intensity of light Into more molecules, 'cause it's a higher concentration here. Same intensity of light, what's going to happen? Well, more is going toīe absorbed as the light travels through this beaker. It's the same number that is, that is the same, the We shined the same amount of light into this beaker, so What's going to happen as the light exits the other side of this beaker right here? Well, some of it is going to be absorbed by our little molecules inside the beaker, so you're going to have less light come out to the other side. Sensitive to the solute that we have dissolved in here. Through each of these beakers, and let's just assume that weĪre shining at a wavelength of light that is specific to the. Now let's think about what will happen if we shine some light Concentration, and let's say, and this is a lower, lower concentration. So I'll just kind of represent that as more closely packed lines. Two has more of the solute, so it's more. So this guy has less of it,Īnd let's say it's yellow, or to our eyes, it looks yellow. Now let's say that solution one has less of the solute in it. And let's just assume that ourīeakers have the same width. We have two solutions that contain some type of solute. Spectrophotometry, photometry, which sounds fairly sophisticated, but it's really based onĪ fairly simple principle. To do in this video is to talk a little bitĪbout spectrophotometry.
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