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Unformatted text preview: magnesium oxide was determined through the use of looking at the mass before and after a chemical reaction to look at percent composition. A source of error could be that when the burnt magnesium strip was being crushed by the glass rod some of the residue could have not been washed off so it would affect the over all mass. Another source of error could be the stuff burnt into the crucible from the last experiment. Even though it there was an attempt to clean it out some of the stuff stuck to the bottom and the magnesium from that could have affect the results....
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- Fall '08
- Magnesium, 32%, 68%, metal oxide, Eric Ly