20.0 gram of magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 gram magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? 1) 60 2) 84 3) 75 4) 96

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$20.0 g$ of a magnesium carbonate sample decomposes on heating to give carbon dioxide and $8.0 g$ of magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? (At. Wt. $M g = 24$ )

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

M g = 24

]

Q. 40 gm of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 16 gm magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample.

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