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Experiment 6 Title: Determination of the Valency of Magnesium Objectives: In this experiment, we can know about the quantitative relations between amounts of reactants and products of a reaction so that the stoichiometry reaction can be determined by a known mass of magnesium and a measured collection of hydrogen gas. Introduction: In chemistry, stoichiometry is the study of the combination of elements in chemical reactions. Stoichiometry refers to the relative number of atoms of various elements found in a chemical substance and is often useful in characterizing a chemical reaction. The related term stoichiometric is often used in thermodynamics to refer to the "perfect mixture" of a fuel and air.Stoichiometry is often used to balance chemical equations. In this experimet, a known starting mass of magnesium and the measured collection of hydrogen gas will be used to determine the reaction stoichiometry. This experiment determines the stoichiometry of a reaction of magnesium and HCl. The...

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