Magnesium Lab

Materials
- tripod.
- two equal strips of Magnesium.
- scale.
- two batterys.
- bunsen burner.
- crucible.
- clay triangle.
- clips.
- lights.

Safety Concerns

1) DON'T wear baggy clothes.

2) keep hair pulled back.

3) MUST wear goggles.

4) NO open toed shoes.

Procedure

1) cut two strips of Magnesium.

2) twist the two pierces togather.

3) mass the empty crucible.

4) zero it out and mass the crucible w/ Magnesium in.

5) remove the Magnesium.

6) put the crucible on the clay triangle on the tripod.

7) light the bunsen burner.

8) put the strips of Magnesium in the flame until it begins to light.

9) DON'T look into the light when the Magnesium lights.

10) look out corner and drop into the crucible.

11) let it cool off.

12) then after it has cooled off figure out the mass on the scale.

13) record the mass.

Data Collected

empty crucible - 22.04 Grams

unborned Magnesium - 0.06 Grams

burned Magnesium - 1.04 Grams

Errors

no errors known of.

Questions

1) weight of crucible - 22.04 Grams, mass of Magnesium - 0.06, after burning - 1.04.

2) it gave off heat so it would be exothermic.

3) it reacted from electricity.

4) Magnesium Oxide and Magnesium Nitrate.

5) Oxygen and Magnesium.

Kaitlyn Stolte

Sg B

Sg 3-5 (A)

Part 1 video


Part 2 Video


Part 3 Video

Study Guide Advanced 1-3 (D)

Was having some Youtube issues so I am posting the answers. You can see the pictures in class tomorrow.

1. MnO2 2. trigonal bipyramidal, 90/120, sp3d, and nonpolar 3. show in class
4. trigonal pyramidal, 107.3, sp3, polar 5. silver chromate 6. show in class
7. sulfur dioxide 8. show in class 9. show in class
10. trigonal bipyramidal, 90/120, sp3d, polar 11. Copper (II) oxide 12 Diarsenic trioxide
13. octahedral, 90, sp3d2, nonpolar 14. Fe2(S2O3)3 15. Selenium Trioxide 16. Show in class 17. Niobium (III)Phoshpide 18. Mg(OH)2 19. Show in class 20. trigonal planar, 120, sp2, nonpolar 21. show in class 22. C 23. d 24. b 25. d 26. d 27. b 28. c 29. a 30. c 31. b

Study Guide 2-3 (C)

Was having some YouTube issues so I am posting the answers and will make sure you can see the pictures in class.

1. Iron (II) Phosphate 2. Will show in class 3. Carbon Tetrachloride 4. Sodium Bromide
5. Show pic in class Li+ O2- Chemical formula:Li2O 6. Pic in class bent, 104.5, sp3, polar
7. CF2 8. show in class 9. tetrasulfur tetranitride 10. MnO2 11. Show in class 12. pic in class, Al +3 S-2 chemical formula: Al2S3 13. pic in class, K+ Cl- Chemical formula :KCl 14. carbon monoxide
15. Potassium Hydroxide 16. BaCl2 17. pic in class, trigonal bipyramidal, 90/120, sp3d, polar
18. linear, 180, sp, nonpolar
19. D 20. D. 21. A 22. D 23. A 24. C 25. B 26. C 27. B 28. B

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