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Title: Unit 3: Scientific Investigation 3.2: Trial Run and planning results Collection and Analysis D2
Description: BTEC APPLIED Science Work
Description: BTEC APPLIED Science Work
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Mohamed Mohamoud
Unit 3: Scientific Investigation
3
...
The tile is white
and the solution is blue so it would make sense if we put blue paper on the tile to gain better contrast
improving the precision of the results
...
I would have suggested that using a non-toxic
indicator like Anthocyanin would have
improved the safety but the methyl indicator
used in the experiment would have obtained
better results because of its properties
...
2: Trial Run and planning results Collection and Analysis
D2
Methodology:
Use the pipette to add 25 cm3 of alkali (Sodium hydroxide) to clean conical flask
...
Fill the burette with hydrochloric acid and note the starting volume
...
Stop adding the acid when the end point is reached (the colour changes to Pale yellow from
blue)
...
6
...
1
...
3
...
5
...
This would all so give
more of an opportunity to do more tests and hence improving the overall results
...
This would be the same if the solution is not swirled
while the hydrochloric acid is being add
...
White Tile
Title: Unit 3: Scientific Investigation 3.2: Trial Run and planning results Collection and Analysis D2
Description: BTEC APPLIED Science Work
Description: BTEC APPLIED Science Work