An Unimaginatively named Chemistry Problem- Mole Concept.

Chemistry Level 2

Yawn what a boring name

A 10 gram sample of a mixture of Calcium Chloride and Sodium Chloride is treated with \(\ce{ Na2CO3 }\) to precipitate the Calcium as Calcium Carbonate. This \(\ce{ CaCO3 }\) is heated to convert all the Calcium to \(\ce{CaO}\) and the final mass of \(\ce{CaO}\) is 1.62 grams. What was the % by mass of \(\ce{CaCl2}\) in the original mixture?

Note: Report your answer up to 1 decimal place.

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