5. (5 polnts) Below is a set of absorbance data that you have obtained while doi

Question

5. (5 polnts) Below is a set of absorbance data that you have obtained while doing an experiment studying the diffusion of potassium permanganate into solutions of water. This diffusion experiment was conducted at three temperatures. Calculate the diffusion rates for these temperature conditions. You may use a computer graphing program for this qu you do -print out the graph and paste it into this exam. estion if you likce. I Tinne (min)| 22°C 4°C 22 C 37°C 0.081 0.201 0.281 0.364 0.380 0.383 Diffusion Rate 4°C Diffusion Rate 22°C Diffusion Rate 37°C 0.040 0.063 0.124 10 0.084 0.161 15 0.090 0.202 20 0.095 0.221 2500930223 25 0.093

Explanation / Answer

Answer:

The rate of diffusion can be calculated by determining thechange in absorbance per unit time.

Rate of diffusion = change in absorbance /time

For the given sets of data, a plot between absorbance and timeyields a straight line whose slope is the required rate ofdiffusion at a given temperature.

At 4C, rate of diffusion = 0.0021

At 22C, rate of diffusion = 0.0061

At 37C, rate of diffusion = 0.0122

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