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Table 2: Speed of Diffusion of Different Molecular Weight Dyes Structure Molecul

ID: 3512234 • Letter: T

Question

Table 2: Speed of Diffusion of Different Molecular Weight Dyes Structure Molecular Weight Total Distance Traveled (mm) Speed of Diffusion (mm/hr)*

Blue Dye 793g/mole 20mm _______?_____________

Red Dye 496g/mole 15mm _______?_____________

*Multiply the total distance diffused by 30 to get the hourly diffusion rate

Instructions: Answer the following questions in complete sentences using correct grammar, spelling, and terminology.

1. Which dye diffused the fastest?

2. Does the rate of diffusion correspond with the molecular weight of the dye?

3. Does the rate of diffusion change over time? Why or why not?

Explanation / Answer

Blue Dye= 600 mm/hr

Red Dye = 450 mm/hr

1) Blue Dye diffuses fastest in this given sample.

2) Yes, Rate of diffusion is dependent on both the molecular weight of the dye and the density of the medium.

3) The rate of diffusion does not remain constant overtime. It does not remain constant because although it did begin relatively constant at first, the rate slowed down and altered towards the end.