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2009-Diffusion-Lab-Group-3-B

Page history last edited by Patrick Lackey 15 years, 2 months ago

Diffusion Lab

Alak, Betty and Patrick

Weight of Substances in the Bag Before Placed in Water 

 

Protein- 12.1 Grams

Dextrose- 7.4 Grams

Starch- 9.4 Grams

 

Weight of Substances in the Bag After Placed in Water

 

Protein- 12.0 Grams

Dextrose- 7.4 Grams

Starch- 9.1 Grams

 

Test of the Water Around Each Bag

 

Water Around Protein Bag --> Tested Negative for Protein by Using Biuret

Water Around Dextrose Bag --> Tested Positive for Sugar by Using Benedict

Water Around Starch Bag --> Tested Negative for Starch by Using IKI

 

Conclusion

 

Dextrose is the only substance that left the bag when placed in water as shown by the Benedict test. But, water also must have entered the dextrose bag because the bag still weighed the same even after being placed in water.

 

 

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