The Blue Bottle Reaction: An Exercise in Observation and Deductive Reasoning Skills
Autor: Sara17 • January 15, 2018 • 2,517 Words (11 Pages) • 603 Views
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Trial
Shake Time (sec)
Transfiguration Time (sec)
Other Observations
Control
- Shake 1
- Shake 2
- Shake 3
- Shake 4
20
10
27
20
120
120
110
120
The solution in the bottle changes from blue then fades to transparent.
Double Methylene Blue
- Shake 1
- Shake 2
- Shake 3
20
20
30
150
150
180
It was observed there was a slightly longer time change for the color.
Double Vitamin C
- Shake 1
- Shake 2
- Shake 3
10
20
20
135
150
150
There was a less intense change in the color observed.
1/2 Amount of Salt
- Shake 1
- Shake 2
- Shake 3
10
20
20
105
150
150
There was a larger change in color. The color was darker
Table 2. Transfiguration time as a function of the various amounts of each ingredient.
Trial
Ingredients
Observations
Trial 1 (Control)
All Ingredients Added
The methylene blue rose to the top and the remaining under the top layer was clear.
Trial 2
NaCl was withheld
The methylene blue still rose to the top regardless NaCl was not presented.
Trial 3
Vitamin C withheld
The methylene blue did not rise to the top. Vitamin C is key in order for the reaction to work properly.
Table 3. The effects of withholding certain ingredients from the solution.
Trial
Transfiguration Time (min)
Amount of Vitamin C (g)
Other Observations
Trial 1
3.5
0.3
The reaction time was longer when less Vitamin C was added.
Trial 2
3
0.6
This was the control amount of Vitamin C added is the same throughout.
Trial 3
2
0.9
The reaction time decreased when more Vitamin C was added.
Table 4. Transfiguration time as a function of the amount of Vitamin C.
Trial
Amount of Salt (g)
Transfiguration Time (sec)
Other Observations
Trial 1
- Time 1
- Time 2
- Time 3
0.0
210
200
205
With no salt added, it takes longer than the control.
Trial 2
- Time 1
- Time 2
- Time 3
0.25
75
68
70
It was observed the less amount of salt added to the solution, the shorter it took for it to become clear.
Trial 3 (Control)
- Time 1
- Time 2
- Time 3
0.5
118
123
121
This was used as the control. It took about the same time for each groups to dissolve.
Trial 4
- Time
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