Homework Help: chemistry

Posted by Anonymous on Thursday, August 9, 2012 at 3:29am.

Lime, CaO, is produced by the decomposition reaction CaCO3(s) Ž CaO(s) + CO2(g). What weight of CO2 is obtained by the decomposition of 38.7 g of CaCO3?

chemistry - DrBob222, Thursday, August 9, 2012 at 2:05pm
mols CaCO3 = grams/molar mass.
Convert mols CaCO3 to mols CO2 using the coefficients in the balanced equation.
Now convert mols CO2 to grams. g = mols x molar mass.

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