Results for “pH”
39 terms · page 2 of 2
Stock Solution
A concentrated solution prepared in advance and stored for later dilution to working strength.
Acids, Bases & SaltsStrong Acid
An acid that ionises essentially completely in aqueous solution.
Organic ChemistryStructural Isomerism
Isomerism in which the compounds differ in the order in which their atoms are connected.
States of Matter & Gas LawsSublimation
The direct conversion of a solid into a vapour without passing through the liquid state.
Stoichiometry & Chemical ReactionsSubstitution Reaction
A reaction in which one atom or group in a molecule is replaced by another.
Acids, Bases & SaltsSuperacid
An acid stronger than pure sulfuric acid, capable of protonating species normally regarded as completely non-basic.
Chemical Kinetics & CatalysisSecond-Order Reaction
A reaction whose rate depends on the square of one concentration or on the product of two concentrations.
Analytical Chemistry & SpectroscopySecondary Standard
A solution whose concentration has been established by titration against a primary standard.
Chemical EquilibriumSimultaneous Equilibria
Several equilibria existing together in the same solution, all satisfied at once.
Chemical Bonding & Molecular Structuresp Hybridisation
The mixing of one s and one p orbital to give two linear hybrid orbitals at 180° to each other.
Thermochemistry & ThermodynamicsSpontaneity
The tendency of a process to occur without any continuous external input of energy.
Thermochemistry & ThermodynamicsStandard State
The reference condition of a pure substance at 1 bar pressure and a stated temperature, conventionally 298.15 K.
Analytical Chemistry & SpectroscopyStandardisation
The determination of the exact concentration of a solution by titrating it against a primary standard.
States of Matter & Gas LawsSurface Tension
The energy required to increase the surface area of a liquid by unit amount, arising from unbalanced intermolecular forces at the surface.
Thermochemistry & ThermodynamicsSurroundings
Everything outside the chosen system with which it can exchange energy or matter.