CHEM 1211 Lecture Notes - Lecture 3: Molar Mass, Limiting Reagent, Chemical Formula
Document Summary
Chem 1211 chapter 3: **balancing chemical equations**: in a balanced chemical equation, the number of atoms of each element is equal on both the reactant and product sides. One mole of any substance contains avogadro"s number (approximately. 6. 022 x 10^23) of particles: **molar mass**: the molar mass of a substance is the mass of one mole of that substance, usually expressed in grams per mole (g/mol). It can be determined by adding up the atomic masses of all the atoms in the substance"s chemical formula: **percent composition**: the percent composition of a compound is the percentage by mass of each element in the compound. The other reactants are in excess and will not be completely consumed: **theoretical, actual, and percent yield**: theoretical yield is the maximum amount of product that can be produced in a chemical reaction, as calculated using stoichiometry. Actual yield is the amount of product actually obtained in the experiment.
