Terms starting with W
6 terms
Water of Crystallisation
Foundations of Chemistry
mol per mol
Water molecules chemically bound within the crystal lattice of a hydrated salt in a fixed stoichiometric ratio.
Weak Acid
Acids, Bases & Salts
mol/L
An acid that ionises only partially in aqueous solution, establishing an equilibrium with its conjugate base.
HA ⇌ H⁺ + A⁻
Weak Base
Acids, Bases & Salts
mol/L
A base that accepts protons only partially in aqueous solution, establishing an equilibrium.
B + H₂O ⇌ BH⁺ + OH⁻
Weak Field Ligand
Inorganic & Coordination Chemistry
cm⁻¹
A ligand that produces only a small crystal field splitting, so electrons occupy upper orbitals rather than pairing.
Δ < P
Werner's Theory
Inorganic & Coordination Chemistry
Dimensionless
The 1893 theory proposing that metals exhibit two types of valence and that ligands occupy fixed positions in space around the metal.
Work
Thermochemistry & Thermodynamics
J
Energy transferred when a force moves through a distance, most often in chemistry as a gas expanding against external pressure.
w = −p_ext ΔV