Interactive General Chemistry 2.0 - Compounds Chapter 5

These flashcards cover key terms and concepts related to molar mass, percent composition, empirical and molecular formulas, and combustion analysis as discussed in Chapter 5 of the Interactive General Chemistry 2.0.

Molar Mass

The mass in grams of one mole of a substance.

Percent Composition

The percent by mass of each element in a compound.

Empirical Formula

The formula that gives the simplest whole-number ratio of atoms in a compound.

Molecular Formula

The formula that gives the actual number of atoms of each element in a molecule of a compound.

Combustion Analysis

A technique used to determine the empirical formula of a compound by measuring the amounts of CO2 and H2O produced.

Atomic Mass Unit (u)

A unit of mass used to express atomic and molecular weights.

Conversion Factor

A ratio used to convert between different units.

Allotropes

Different structural forms of the same element.

Stoichiometry

The branch of chemistry that deals with the calculation of reactants and products in chemical reactions.

Avogadro's Number

The number of particles (atoms or molecules) in one mole of a substance, approximately 6.022 x 10^23.

Hydrate

A compound that contains water molecules within its structure.

Formula Mass

The sum of the atomic masses of all atoms in a formula unit of a substance, expressed in atomic mass units (u).

Molar Mass (g/mol)

The numerical value of a substance's molar mass expressed in grams per mole.

Sublimation

The transition of a substance directly from the solid to the gas phase without passing through the liquid phase.

Atomic Mass

The weighted average mass of an element's isotopes compared to a standard.

Chemical Analysis

Techniques used to identify the composition of a chemical substance.