CHEM 1021 Lecture Notes - Lecture 6: Molar Mass, Chemical Equation, Ammonia
Document Summary
Stoichiometry - the process of determining the amounts of substances in a chemical reaction (from the greek for element and measurement) Relates amounts of reactants and products based on the balanced chemical equation (ie. c3h8 (g) + 5 o2 (g) -> 3 co2 (g) + 4 h2o (g) The mass on each side of a balanced equation is a same (but the ratio is not) A balanced equation contains the ratio of reactants to products, reactants to reactants, and products to products. Mole ratios (which can be obtained from the coefficients) act as a conversion factor (ie. 3 h2 + Convert mass to moles by dividing by the molar mass (molar mass = moles/mass) To find the mass of a product given the mass of a reactant, convert the reactant to moles, get the moles of the product from the equation, convert moles to mass (mass reactant -> moles reactant -
