Stoichiometry of Formulas and Equation

This set of flashcards covers key vocabulary terms and concepts from the lecture on stoichiometry, focusing on the properties of compounds, relationships between moles and mass, and the principles of chemical reactions.

Molecular Mass

The sum of the atomic masses of the atoms in a molecule.

Avogadro's Number

6.022 x 10^23, the number of particles per mole of a substance.

Mole (mol)

A unit that relates the mass of a substance (in grams) to the amount of atoms or molecules present.

Molar Mass

The mass per mole (g/mol) of a substance, calculated as the sum of the atomic masses of its constituents.

Mass Percent

The proportion of a particular element in the overall mass of a compound, expressed as a percentage.

Stoichiometric Coefficient

Integers placed in front of a chemical compound in a balanced equation that represent the ratio of that compound to others.

Theoretical Yield

The maximum amount of product that can be produced from a given amount of limiting reactant.

Limiting Reactant

The reactant that is completely consumed in a reaction and determines the maximum yield of product.

% Yield

A measure of the success of a reaction, calculated as (actual yield/theoretical yield) x 100.

Net Reaction

The overall reaction that shows the relationship between reactants and products across multiple steps.

Chemical Equation

A symbolic representation of a chemical reaction using molecular formulas, ratios, and states of matter.

Mass(g) = mol×M

The formula that relates mass, amount of substance in moles, and molar mass.

Conversion Factors

Factors used to convert from one unit to another in stoichiometric calculations.

Byproducts

Secondary products formed during a chemical reaction that are not the primary focus.

Balanced Equation

A chemical equation in which the number of atoms of each element is the same on both sides.

Reactants

Substances that undergo a chemical change in a reaction.

Products

Substances formed as a result of a chemical reaction.

Intermediates

Products from one reaction that are used as reactants in subsequent reactions.

Stoichiometry

The area of chemistry that deals with the relationships between quantities of reactants and products in a chemical reaction.

Density (d)

The mass per unit volume of a substance, often expressed in g/mL.

Chemical Reactions

Processes that involve the rearrangement of molecular or ionic structure to convert reactants into products.