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Introduction : This lab is based on calculating molar mass, balancing equations, and predicting the chemical reactions that take place in complex stoichiometry problems.Stoichiometry is the study of the quantitative relationship in a chemical equation and is the basis of the lab.Molar mass is the mass, in grams, of a single mole of a substance. This problem's starting substance, or reactant, is CaCl2*2H20 and K2CO3. Once the lab is completed, approximately 2.00g of CaCo3, the precipitate, should remain. The precipitate is the solid that seperates from the solution during the chemical reaction. This problem is a double displacement problem : it is a compound plus a compound that yields another compound plus a compound. If