1 page Formal Lab Report on Diffusion through a...
Table 5: Diffusion through Corn Syrup (Data and Rates)
Molecular
Dye Color Weight
(g/mol)

Initial
Position

Final
position

Total
Distance
Traveled
(mm)

Diffusion
Rate*
(mm/hr)

Blue

793

2.0

2.9

29

870

Red

496

1.7

2.5

25

750

*Multiply the total distance traveled by 30 to obtain the diffusion rate.
Table 6: Diffusion through Corn Syrup: Incremental Data
Corn Syrup
Time

Blue Dye

Red Dye

10

2

????1.7?

20

2.3

2.1

30

2.5

2.2

40

2.6

2.3

50

2.6

2.4

60

2.7

2.4

70

2.7

2.4

80

2.8

2.4

90

2.8

2.5

100

2.8

2.5

110

2.9

2.5

120

2.9

2.5

Table 7: Diffusion through Water: Data and Rates

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Molecular
Dye Color Weight
(g/mol)

Initial
Position

Final
Position

Total
Distance
Traveled
(mm)

Diffusion
Rate
(mm/hr)

Blue

793

.7

1.1

29

870

Red

496

.6

1.2

25

750

*Multiply the total distance traveled by 30 to obtain the diffusion rate.
Table 8: Diffusion through Water: Incremental Data
Water
Time

Blue Dye

Red Dye

10

.7

.6

20

.8

.7

30

.9

.8

40

.9

.8

50

.95

.9

60

1.0

1.0

70

1.0

1.1

80

1

1.1

90

1.1

1.1

100

1.1

1.1

110

1.1

1.2

120

1.1

1.2

Post Lab Questions
1.
Include your hypothesis (constructed in Procedure Step 1) here.
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Does blue dye have more mass than red dye?
2.Was your hypothesis proven or disproven? Provide data-based
evidence from your experiment to support your claim. Be sure to
analyze the numbers you recorded to transform the information from
data into results.
?????Yes, I do believe so, the blue dye travel much faster than the red dye in both
liquids. In date collection it shows it moves at higher rate

3.

Select an appropriate method to graphically display the data you
recorded in Tables 6 and 8. Use a graphing or drawing program on
your computer (e.g., Microsoft Drawing®, Microsoft Excel®, etc.) to
accomplish this task. Be sure to include components such as a title, x
and y axis labels, units, etc. Also, indicate which variable is the
independent variable, and which is variable is the dependent variable.
Include your graphs below.

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?????

4.

Which dye diffused the fastest in corn syrup? Which dye diffused the
fastest in your chosen water?
?????Blue in the corn syrup. Red in the tap water

5.

Does the rate of diffusion correspond with the molecular weight of the
dye?
?????In blue I feel it did in syrup but the corn syrup is denser. However tap is a
lighter substances and the red dye is lighter substance. So I think it depends on
the density of the substances.

6.

Does the rate of diffusion change over time? How might this affect your
calculated diffusion rate compared to the actual diffusion rate?

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??? Yes, as the (solution) reaches equilibrium the rate of diffusion decreases. ??
The greater the variance in concentration between two ranges, the greater the rate of
diffusion

7.

Describe why the medium the dyes diffuse through can affect the rate
of diffusion. How does this relate to nutrient transport into cells?
It is a progression, which involves movement of a substances from a region of
it’s absorption to an area of it’s lower absorption. The additional absorption we
can do the additional nutrients we can achieve.

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