A report on the Reaction of Mg and Hydrochloric Acid and its production of H2 gas. This can be used to compare results.
sni magnesium
magnesium
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magnesium
Magnesium
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huhu
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lab reportFull description
MAGNESIUM OXIDE LAB
CHEMISTRY LAB REPORT
SEPTEMBER 23rd , 2009
LAB PERFORMED BY:
Narendran Sairam and Steven Kraplin
Table Of Contents • • • • • • •
Objective .......................................................................................................................................3 Equipment......................................................................................................................................3 Experimental Procedure.................................................................................................................3 Observations...................................................................................................................................4 Data Table......................................................................................................................................4 Calculations....................................................................................................................................4 Conclusion.....................................................................................................................................5
Objective and Equipment
Objective:
The objective of this lab is to experimentally determine the empirical formula of Magnesium Oxide.
Equipment: •
Ring Stand
•
5 inch ring
•
wire gauze
•
Crucible and Crucible lid
•
Butane burner
•
Magnesium
•
Crucible tongs
•
Safety glasses
•
Gloves Experimental Procedure
1. Setup ring stand with five inch ring ring and and triangl triangle. e. 2. Obtain Obtain desired desired amount of Magnesi Magnesium, um, a crucible crucible with with a lid and crucible crucible tongs. tongs. 3. Weigh the crucible, crucible, crucible crucible lid lid and the obtained obtained magnesium magnesium and record record respective respective weights. weights. 4. Heat the crucible crucible with with the magnesium magnesium in in it and place place the lid so so that there there is a small small opening. opening. 5. Continue Continue to to heat at medi medium um heat for for five five minute minutes. s. 6. Then, Then, heat heat at high high heat heat for five five minute minutes. s. 7. Shut burner burner down down and let let the magnesi magnesium um cool for for about about ten minutes. minutes.
8. After ten ten minutes, minutes, add enough enough water to the magnesium magnesium to to submerge submerge half of the the ash. 9. Now, Now, heat the the crucible crucible at low low heat till till the the water evaporates. evaporates. 10. Once the water evaporates, heat crucible at medium heat for a minute with with the lid places such that there is a small opening. 11. Then heat at high high heat for five minutes. minutes. 12. Finally, Finally, allow another ten ten minute cooling period. period. 13. Weigh the Crucible along with the the magnesium and record the weight. Observations •
After step five, butane burner was replaced due to technical difficulties.
•
After step six, magnesium was observed to be a bright red color.
•
After step seven, magnesium ash was observed o bserved to be a Grey white color.
•
As step ten took place and the water evaporated, a strong odor was observed.
•
At the end of the experiment the magnesium was still observed to be a Grey white color. Data Table OBJECT
MASS(grams)
Empty crucible and lid
37.2
Empty crucible and lid with magnesium
37.62
Empty crucible and lid with combustion product
37.9
Magnesium net weight
0.42
Combustion product net weight
0 .7
Weight of oxygen in the product
0.28
Calculations OBJECT
NUMBER
The mass of Mg used
0.42g
The number of moles used is
0.01715696 mole Mg
Mass of magnesium oxide formed
0.697g
Mass of O combined with Mg
0.28g
Number of moles of O
0.0175006 mole O
Conclusion
After the experiment was conducted, arduous calculation followed. From the results of the calculation it is apparent that the ratio of the number of moles of Oxygen to the number of moles of Magnesium is one to one. This results in the empirical formula being MgO but the lab may have been subject to human error. error.
