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  2. 20.0g of magnesium carbonate sample decomposes on heating to give carbondioxide and 8.0g of magnesuim oxide what will be percentage purity m
# Engineering

20.0 mg of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 mg magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? 

[Atomic weight of Mg=24]

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