Jacqueline Ancient Romans built often out of bricks and mortar. A key ingtedient in their mortar was quicklime (calcium oxide), which they produced by roasting limestone (calcium carbonate). 1. Write a balanced chemical equation, including physical state symbols, for the D-0 decomposition of solid calcium carbonate (CACO3) into solid calcium oxide and gaseous carbon dioxide. 2. Suppose 47.0 L of carbon dioxide gas are produced by this reaction, at a temperature of 400.0 °C and pressure of exactly 1 atm. Calculate the mass of calcium carbonate that must have reacted. Round your answer to 3 significant digits.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".