PAG 1 Flashcards

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1
Q

1.3 Determination of the formula for magnesium oxide

Why did you need to raise the crucible lid slightly when you first heated the magnesium?

A

To let oxygen enter so it could react with the magnesium

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2
Q

The formula from this experiment often shows slightly less oxygen than is present in pure magnesium
oxide. Suggest why this should be so.

A
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3
Q

What was the purpose of breaking up the magnesium oxide whilst heating the contents of the crucible
strongly for 5 minutes?

A
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