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Castle of Qualifications Essay

  • Submitted by: semitsvet17
  • on April 13, 2015
  • Category: Miscellaneous
  • Length: 4,090 words

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Below is an essay on "Castle of Qualifications" from Anti Essays, your source for research papers, essays, and term paper examples.

Data:
Mass of "R" boiling tube
42.54g
Mass of zinc used
2g
Mass of Iodine used
2g
Mass of excess zinc and "R" boiling tube after rinsing, heating and cooling
48.08g
Mass of excess zinc and "R'' boiling tube after.rinsing, heating and cooling a second time
48.06g
Mass of "P" boiling tube and boiling chip
41.3g
Mass of "P" boiling tube, boiling chip, and zinc Iodide after heating and cooling
43.19g
Mass of "P" boiling tube, boiling chip, and zinc Iodide after heating and cooling a second time
43.18g
Atomic mass of zinc
65.38amu
Molecular mass of Iodine
253.8amu
Molecular mass of Zinc Iodide
319.18amu

Description of reaction between zinc and Iodine
The reaction between zinc and iodine is   exothermic since we feel the tube to become warm once we start mixing the reactants. The product of the reaction is metal salt called zinc iodide. Zinc iodide is the precipitate left in the tube after heating it over the Bunsen burner and evaporating the solvent.   In lab that we conducted, iodine is always the limiting reagent (less moles than zinc). The iodine is all used up, which means all the mass is used up, while there is excess zinc in every experiment.



Data from the Lab Experiments.

# of eperiment
Mass of zinc before reaction,g
Mass of Iodine before reaction,g
Acidified water,ml
Mass of excess zinc,g
Mass of zinc reacted,g
Mass of Iodine reacted,g
Mass of zinc and Iodine reacted,g
Mass of zinc Iodide produced ,g
1
2.00
3.00
10.00
1.14
0.86
3.00
3.86
3.46
2
1.00
2.00
5.00
0.50
0.50
2.00
2.50
2.49
3
2.00
1.00
5.00
1.77
0.23
1.00
1.23
1.07
4
3.00
2.00
5.00
2.30
0.70
2.00
2.70
2.31
5
2.00
2.00
5.00
1.50
0.50
2.00
2.50
1.90
6
2.00
2.50
8.00
0.96
1.04
2.50
3.54
3.14
7
1.00
1.50
5.00
0.62
0.38
1.50
1.88
1.52

Data from the Theoretical Calculations.

# of eperiment
Mass of zinc before reaction,g
Mass of Iodine before reaction,g
Acidified water,ml
Mass of excess...

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MLA Citation

"Castle of Qualifications". Anti Essays. 26 Apr. 2019

<https://www.antiessays.com/free-essays/Castle-Of-Qualifications-727356.html>

APA Citation

Castle of Qualifications. Anti Essays. Retrieved April 26, 2019, from the World Wide Web: https://www.antiessays.com/free-essays/Castle-Of-Qualifications-727356.html