- Join over 1.2 million students every month
- Accelerate your learning by 29%
- Unlimited access for just £4.99 per month
Percentage composition by mass of magnesium oxide
The first 200 words of this essay...
Lab report:
Percentage composition by mass of magnesium oxide
Introduction:
Law of Definite Proportions is the law stating that a specific compound always contains the same elements in definite proportions by mass. We will experimentally determine the composition by mass of a substance and then convert he mass amounts to percentages, to give us the percentage composition. Magnesium is a silvery metal that burns with such a bright flame that it was once used in flashbulbs for photography. Magnesium oxide, a white powder, is produced as a result of the synthesis reaction of combustion magnesium.
Hypothesis:
The percentage composition by mass of magnesium oxide will be 60% magnesium and 40% oxygen.
Purpose:
To find the percentage composition by mass of magnesium oxide.
Safety:
* Wear eye protection.
* Use crucible tongs to transfer hot crucible.
* Care is required in using a lab burner and handling hot apparatus.
* Magnesium ribbon burns with a hot flame and extremely bright light.
Materials:
Lab apron, eye protection, centigram or analytical balance, 7-8cm magnesium ribbon, steel wool, porcelain crucible and lid,
Found what you're looking for?
- Start learning 29% faster today
- Over 150,000 essays available
- Just £4.99 a month
Not the one? We have 100's more
Classifying Materials (view all)
- Plastics Friend or Foe
- Identifying unknown substances. The test that we did was a f...
- Experiments to determine the identity of metals by examining...
- Reactions of period 3 elements with Oxygen, water and chlori...
- How to write an element in chemical notation?
