magnesium lab

Jonie Meling
January 11, 2012
magnesium lab

safety precautions:
1. hair pulled back
2. no loose or baggy clothing
3. no open toed shoes
4. wear goggles
5. eye precaution


materials:
1.crucible
2.magnesium strips
3.tri-pod
4. tongs
5. stir stick
6.wires
7. batteries
8. strike
9.Bunsen burner
10. 5 ml of distilled water

procedure:
1.gather up all the supplies
2. put crucible on tri-pod over Bunsen Burner (see image)
3. put the magnesium strip in the crucible
4.light the Bunsen Burner
5.pit lid on crucible for 2 minutes
6. if not lit take off lid for 2 more minutes
7. still not lit take magnesium out and lite by hand (don't look directly at flame)
8. put the magnesium back in crucible
9.put the lid on and turn off the Bunsen Burner
10. let crucible cool then add the 5 ml of distilled water
11. stir
12. put the batter contraption together (see images) and see if the lights light up.

results/data:
1.crucible weighs 33.6 oz
2crucible before burning weighs 33.75 oz
3.crucible after burning weighs 33.75 oz
4.solution was conductive.

question and answer:

1. use the masses in the table to calculate the mass of the magnesium ribbon and the mass of the magnesium product. record these masses in the table.

2. what kind of energy was released by the reaction? What can you conclude about the products of this reaction?

3. How do you know that the magnesium metal reacts with certain components of the air?

you know because there was still some magnesium residue left in the crucible and when we mixed that with water it made the lights light up.


4. Magnesium reacts with both oxygen and nitrogen from the air at the high temperature of the crucible. Predict the binary formulas for both products. Write the names of these two compounds.

5. The product formed from magnesium and oxygen is white, and the product formed from magnesium and nitrogen is yellow. From you observations, which compound makes up most of the product.

nitrogen because when the magnesium was burning it was more yellow than white.


6. Did the magnesium compounds and water conduct and electric current? Do the results indicate whether or not the compounds are ionic?

yes it did conduct and electric current because it lite up the lights and no we can not determine if they are ionic or not.


7. If the magnesium last mass instead of gaining mass, what do you think was a possible source of the error?

i think a possible air was that we didn't get the measurements right or that the magnesium didn't get burnt as well as it should have.


8.The magnesium ion plays an important role in a person's biochemistry.Research the role of this electrolyte in your physical and mental health.� Is magnesium listed as a component in a multi-vitamin and mineral tablet?

9. research the use of Mg(OH)2 in everyday products. What is Mg(OH)2 commonly called in over-the-counter drugs?

It is put in water to make milk of magnesia and also relieves heart burn, sore stomach, and some side effects are nausea and cramping.