Hypothesis(Based on what you’ve learned in the pre-lab materials, write and If/Then statement regarding the outcome of this experiment.): If I add the methylene blue solution and the acetic acid to gelatin solution the acetic Table 1: Diffusion DataTest TubeDistance After 4 Hours (mm)Distance After 24 Hours (mm)A8mm18mmB2mm5mmC7mm14mmClaim(What are the results of your experiment?): Evidence(What data did you collect that supports your claim? Explain the meaning behind the data and the calculations.): Over a 24-hour period I have collected measurements that support the claim of how far they moved Post-Lab Questions1.Create a graph of your results with time (seconds) on the x-axis and distance of diffusion (mm) on the y-axis. There should be one line for each solution on your graph. ©eScience Labs, LLC 2018Diffusion and Osmosis
Tube A Tube BTube C024681012141618208270185140Gelatin Diffusion4 hours24 hoursTime (hours)Distance (mm)9.Which solution diffused the fastest? The combination solution diffused the fastest.Does the rate of diffusion correspond with the molecular weight of the solution? Explain your answer. Why you think there was or was not a correlation between molecular weight and rate of diffusion? In my opinion What does the rate of diffusion tell you about limitations of cell size? ©eScience Labs, LLC 2018Diffusion and Osmosis
Reflection(Discuss what you have learned by doing this experiment. How have your ideas changed? Do you have any new questions? What connections did you make between the lab and lecture?):
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- Fall '19