Tuesday, January 17, 2012

Magnesium Lab

Materials: you need a Crucible, a strip of Magnesium, a striker or a lighter, a hair tie, tripod, tongs, stir rod, Bunsen burner, wires, batteries, 5 ml. of distilled water and Christmas lights.
Safety Concerns: hair pulled back , close toed shoes, and safety goggles, no baggie clothes, and don't look directly at the magnesium burning. (shown in picture 4 below)

Procedure: 1. Safety First. Then gather all of your supplies. You start the Bunsen burner put crucible on top in the triangle then let it sit for 2 minutes with the lid on.
2. If not lit after 2 minutes then take the Mg out of crucible and put it in the flame. Once lit on fire use peripheral vision to set it back in the crucible. Make sure you shut off the flame.

3. Wait for it to burn. (wait for crucible to cool and proceed with the lab shown in the picture 1 above.) After the crucible has cooled down put 5 ml. of H2O in the crucible and stick to ends of the wires in the crucible and stir. (shown in the picture 2 above)

Results/Data: Crucible mass: 33.62 oz.
Crucible mass with magnesium: 33.75 oz.
Crucible mass after magnesium burned: 33.75 oz.
(the solution was conductive)

Errors: Errors that could have been made was the scale did not get tared and set back to '0'.

Analysis questions:
1. 13 oz.
2. There was a lot of energy being released from the light that was given off and from the heat.
3. Because the Magnesium left a residue in the crucible from the oxygen and nitrogen in the air.
4. MgO Magnesium Oxide; Mg3N2 Magnesium Nitrate
5. Oxygen makes up most because the residue was white.
6. Yes it did create an electric current and yes it does provide information that it is ionic.
7. An error that could have been made was they didn't tare the scale.
1. Magnesium is found in multi-vitamins and mineral tablets.
2."Milk of Magnesium" its found in something like a tum, for heart burn.

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