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12 grams of a mixture of sand and calciu...

12 grams of a mixture of sand and calcium carbonate on strong heating produced 7.6 grams of residue. How many grams of sand is present in the mixture?

Text Solution

Verified by Experts

The correct Answer is:
2
`CaCO_(3)rarrCaO+CO_(2)`
`100g-56gimplies10g-5.6g`
`therefore` weight of sand = `12-10=2g`
weight of residue = `5.6+2=7.6g`
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