Introduction to Stoichiometry and Molar Mass

Vocabulary flashcards covering key stoichiometry concepts, balancing equations, atomic conservation, mole concepts, and molar mass conversions based on lecture material.

Stoichiometry

The study of quantitative relationships in chemical reactions based on the conservation of matter, where atoms are rearranged rather than created or destroyed.

Conservation of Matter

The fundamental chemical principle stating that atoms are neither created nor destroyed during a chemical reaction, requiring an equal number of each atom type on both the reactant and product sides.

Coefficient

A number placed in front of a chemical formula in a balanced equation that specifies the relative number of moles or molecules of that substance involved in the reaction.

London Dispersion Forces

Intermolecular forces that exist between separate molecules or noble gas atoms, as distinguished from covalent bonds which exist within a molecule.

Covalent Bonds

Intramolecular chemical bonds that exist within a molecule to bind its constituent atoms together.

Molar Mass

The mass in grams of one mole of a substance, expressed in units of $g\,mol^{-1}$, which serves as a conversion factor between grams and moles.

Mole

A fundamental counting unit in chemistry used to express amounts of chemical substances and scale atomic ratios up to macroscopic chemical quantities.

Parentheses in Chemical Formulas

A notation indicating that every atom subscript within the parentheses is multiplied by the subscript outside the parentheses, such as in $\text{Fe(OH)}_3$.