Chem 101 Essay

Chem info

Brooke Morelock

June 18, 2013

Experiment #3

Separating of a Blend of Solids

GOAL

To learn tips on how to separate blends and solids using laboratory materials with in LabPaq.

DATA

Table 1 Separation of any Mixture of Hues

Solid| Grams| Percent of Mixture

Flat iron Filings| 13. 3g| 23. 4%

Sand| 14. 6g| 25. seven percent

Table Salt| 6. 9g| 12. 1%

Benzoic Acid| 20. 7g| 36. 4%

Total| fifty-five. 5g| installment payments on your 4% mistake

OBSERVATIONS

Flat iron fillings trapped to the magnetic as I passed it over the mixture. Because the solution was heated it and Benzoic Acid blended in the water and the yellow sand stayed separated. As the perfect solution was added into the newspaper cup the sand was left behind inside the beaker. The Benzoic Acid separated through the solution as the water was cooled. The water became gray and oozy. The Benzoic Acid had taken a day to be dried out. Then the salt normal water took 3 days to evaporate and the salt was then left behind.

MEASUREMENTS

100% from the mixture acessed 56. 9g; 61. 8(mixture in the dish)- 4. 9(dish)=56. 9g. The iron acessed 13. 3-g; 22. 4-g (iron)-9. 1g(paper)=13. 3g. The sand acessed 14. 6g; 19. 5g (the sand in the dish)-4. 9(dish)=14. 6g. The Benzoic Acid considered 20. 7g after subtracting the pounds of the filtration. The desk salt weighed 6. 9g after subtracting the excess weight of the glass. The percentage of mixtures had been calculated by simply dividing the grams with the solid from your total weight of the combination. The error was worked out by adding the percentage of blends and subtracting it from 100%, showing me i had installment payments on your 4% mistake for this test.

CONCLUSION as well as DISCUSSION

Within this experiment, I used to be required to separate 4 shades: Iron, Yellow sand, Benzoic Acid solution, and Desk Salt. My results added up to end up being 55. your five grams, whilst my first mixture weighed 56. 9 grams. These results present that I wound up with an error of 2. 4%. The errors might have been caused by human error, such as miss calculations or miss weighing shades. Other mistakes could have been caused by the way the solids were separated....

References: labPaq. (n. d. ). Englewood, CO: Hands-onlabs.

Denniston, T. J., Topping, J. L., & Tortue, R. M. (2011). General, Organic, Biochemistry and biology (7th male impotence. ). NewYork, NY: McGraw-Hill.