83 STOI 606: Detemining the Empirical Formula of Magnesium Oxide date name partn

Question

83 STOI 606: Detemining the Empirical Formula of Magnesium Oxide date name partner section Pre-Laboratory Assignment hen it is heated and first reacts 1. Why is it hazardous for you to look directly at the Mg in the cruclble w with atmospheric oxygen? cover? 2. (a) Why should you always use crucible tongs when you handle the crucible and its (b) Why will you have to begin the Procedure again if the crucible cover falls and breaks at any time after you complete Step 6? (c) Why will you add a few drops of water to the white reaction product in the crucible (Step 14)?

Explanation / Answer

1A) When you heated the Megnesium in atmosphere its started to react with Oxigen and form Magnesiumoxide with high energy. The emitted energy in the form of light, this light is very bright contains all range of visible and UV also. so if you see this light directly it may cause harm to your eyes. Thats way its hazardous to look directly when magnesium reacts with oxygen.

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