Homework Help: chemistry 1

Posted by safwan hakim on Sunday, May 2, 2010 at 7:04am.

When heated, calcium carbonate decomposes to yield calcium oxide and carbon dioxide gas via the reaction

How many grams of calcium carbonate are needed to produce 49.0 of carbon dioxide at STP?

chemistry 1 - bobpursley, Sunday, May 2, 2010 at 8:24am
balance the equation

CaCO3>> CaO + CO2

so for every mole of CO2, you need one mole of calcium carbonate.

How many moles of CO2 is 49grams?

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