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Results for “Mole”

10 terms


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Analytical Chemistry & Spectroscopy

High-Resolution Mass Spectrometry

Mass spectrometry capable of measuring mass to four or more decimal places, allowing molecular formulae to be determined.

Da
Chemical Bonding & Molecular Structure

HOMO and LUMO

The highest occupied and lowest unoccupied molecular orbitals, which together govern a molecule's reactivity and spectroscopy.

ΔE = E_LUMO − E_HOMO eV
Foundations of Chemistry

Hydrate

A crystalline compound in which a definite number of water molecules is incorporated into the lattice.

MX·nH₂O Dimensionless
Inorganic & Coordination Chemistry

Hydrate Isomerism

Isomerism arising from water molecules occupying either the coordination sphere or lattice positions outside it.

Dimensionless
Solutions & Colligative Properties

Hydration Energy

The energy released when one mole of gaseous ions is surrounded by water molecules to form a dilute aqueous solution.

ΔH_hyd ∝ z / r kJ/mol
Atomic Structure & Periodicity

Halogens

The group 17 elements — fluorine through astatine — which are one electron short of a full outer shell.

ns² np⁵ Dimensionless
Thermochemistry & Thermodynamics

Heat Capacity at Constant Volume

The heat needed to raise a system's temperature by one kelvin while its volume is held fixed.

C_V = (∂U/∂T)_V J/(mol·K)
Chemical Kinetics & Catalysis

Homogeneous Catalysis

Catalysis in which the catalyst is in the same phase as the reactants.

Dimensionless
Foundations of Chemistry

Homogeneous Mixture

A mixture whose composition and properties are uniform throughout, with no visible boundary between the components.

Dimensionless
Organic Chemistry

Hückel's Rule

The rule that a planar cyclic conjugated system is aromatic if it contains 4n + 2 pi electrons.

4n + 2 π electrons Dimensionless