chemistry question?

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Limestone (CaCOsubscript3) is decomposed by heating to quicklime (CaO) and carbon dioxide. Calculate how many grams of quicklime can be produced from 4.0 kg of limestone.

2007-09-03 04:33:46 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

1 answers

This is a purely weight ratio problem. The molecular weight of CaCO3 is: 40.08 +12.01 + 3*16.00= 100.09, while the molecular weight of CaO is: 40.08+16.00 = 56.08. Therefore
56.08 /100.09 = x/4.0 and x ≈ 2.2 kg

2007-09-06 12:42:03 · answer #1 · answered by Hahaha 7 · 0⤊ 0⤋