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?

12 grams of a mixture of sand and calcium carbonate on strong heating

1.	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?
Answer» Solution :`CaCO_(3)rarrCaO+CO_(2)` `100g-56gimplies10g-5.6g` `THEREFORE` weight of sand = `12-10=2g` weight of RESIDUE = `5.6+2=7.6g`