nce data that you have obtained while doing an experiment y is a set of absorba
ID: 252772 • Letter: N
Question
nce data that you have obtained while doing an experiment y is a set of absorba . (5 points) Below is a set of absorbance n of potassium p f water. This diffusion Calculate the diffusion rates for these conditions. You may use a computer graphing program for this question t ermanganate into solutions o s conducted at three temperatures. experiment was you do -print out the graph and paste it into this exam 4°C 0.040 0.063 0.084 0.090 0.095 0.093 22°C 0.082 0.124 0.161 0.202 0.221 0.228 37 C Time (min) Diffusion Rate 4C 0.081Diffusion Rate 22°C 10 15 20 25 0.201 Diffusion Rate 37"C 0.281 0.364 0.380 0.383Explanation / Answer
Answer :
The rate of diffusion can be calculated by determining the change in absorbance per unit time.
Rate of diffusion = change in absorbance / time
For the given sets of data, a plot between absorbance and time yields a straight line whose slope is the required rate of diffusion 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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