Magnesium Lab

Brianna Chaplin

Period 3

Magnesium Lab



Materials Needed:

• 1 crucible with a lid




• 2 strips of magnesium




• Bunsen Burner




• 1 pair of tongs

Safety Precautions:

• Wear goggles at ALL times




• Have your hair pulled back




• No baggy clothes (especially sleeves)




• After the crucible is done heating, let it sit. It will be extremely hot.




• Use the tongs appropriately. There is a groove in them to pick up the crucible.




• DO NOT look directly at the burning magnesium. It sets off UV rays that damage eyesight.

Procedure:

1. Mass the crucible before beginning the lab and record.




2. Add two strips of magnesium and roll them into a ball. Place them in the crucible and mass again and record.




3. Turn on the fire and place the crucible in the holder right above the flame. Make sure the lid to the crucible is ON.




4. If the crucible begins to shake: See step 5. If not, continue to step 6.




5. Remove the lid and DO NOT look into the crucible. Look out of the corner of your eye. Go to Step 7.




6. Take out the magnesium with the tongs and hold directly over the flame. As soon as the white light shows, place back into the crucible but make sure to NOT look at the magnesium.




7. Wait until the crucible cools down and mass again. Record.




8. Add approxiametly 5ml of water.




9. Stir the magnesium and water


10. Grab christmas lights and put the two connector end into the water. Move them around and see if they conduct electricity.

Results

Mass before: 22.42

Mass w/ magnesium: 22.57

Mass after burning: 22.6

Also, the water with the magnesium conducted electricity, but only if the two conductors were very,very close to each other, but still not touching.

Book Questions:

1. Our starting magnesium weighed .15 g and the ending magnesium weighed .18 g


2. Exothermic reaction; mass should increase


3. The magnesium is chemically reacting with the flames and the air.


4. Nitrite and nitrate


5. Oxygen and Magnesium


6. It did conduct electricity, but barely


7. The scales could've been off, the measurements could've been recorded incorrectly.

Real-World:

1. The magnesium Ions help the nervous system


2. It is used in antacids