1. collect 25cm of clean magnesium strips, a ceramic crucible, a bunson burner, and a "tree"
2. Weigh the empty crucible, weigh the crucible and mg strip
3. subtract the two weights to find the measurement of the mg strip before heating.
4. place the crucible and strip on the tree, directly above the lit bunson burner
5. a white smoke/flame will soon appear. at this point turn off the burner and let the crucible cool for quite some time
6. after it has cooled completely you will notice the mg strip has turned into a white powdery substance. weigh the crucible and product at this point.
7. to find the weight of the magnesium products after heating, take the after heating measurement and subtract it from the weight of the empty crucible.
8. clean up and you'll be done!
Data:
Material Mass(g)
empty crucible 58.7
crucible&Mg ribbon 59.6
(before heating)
Magnesium ribbon .9
Crucible&Magnesium 60.1
(after heating)
Magnesium Products 1.4
Conductivity Level: LOW LIGHT
Analysis:
With this lab I learned that the magnesium products actually weigh more after the heating process than it did before the heating process. This was a .5 gram difference in my case. I also learned that magnesium is easily ignitable and lets off a different type of smoke than a regular fire would. With the help of Zach and Dakota, I also learned that ceramic crucibles are extremely breakable when heated intensely. (:
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