Determination Of The Valency Of Magnesium

... Title : Determination of the Valency of Magnesium Objective: 1. To determine the stoichiometry of the magnesium 2. To study the quantitative relations between amounts of reactants and products of the reaction. Theory & Background : 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. Stoichiometry rests upon the law of conservation of mass, the law of definite proportions and the law of multiple proportions. In general, chemical reactions combine in definite

want to read more? →