Results for “Mole”
256 terms · page 9 of 11
Homogeneous Mixture
A mixture whose composition and properties are uniform throughout, with no visible boundary between the components.
Organic ChemistryHückel's Rule
The rule that a planar cyclic conjugated system is aromatic if it contains 4n + 2 pi electrons.
Analytical Chemistry & SpectroscopyIntegration in NMR
The measurement of the area under each NMR signal, which is proportional to the number of nuclei giving rise to it.
Thermochemistry & ThermodynamicsInternal Energy
The total kinetic and potential energy of all the particles within a system.
Chemical Bonding & Molecular StructureIonic Bond
The electrostatic attraction between oppositely charged ions formed by the complete transfer of electrons from one atom to another.
Atomic Structure & PeriodicityIsoelectronic Species
Atoms or ions that possess the same number of electrons and the same electron configuration.
States of Matter & Gas LawsJoule–Thomson Effect
The temperature change of a real gas when it expands through a throttle without exchanging heat or doing external work.
Chemical Kinetics & CatalysisLangmuir Adsorption Isotherm
A model describing monolayer adsorption on a surface with a fixed number of equivalent, independent sites.
States of Matter & Gas LawsLatent Heat
The energy absorbed or released when a substance changes state, with no accompanying change in temperature.
Foundations of ChemistryLaw of Definite Proportions
The principle that a given chemical compound always contains its constituent elements in the same fixed mass ratio.
Solutions & Colligative PropertiesLike Dissolves Like
The empirical rule that substances dissolve best in solvents with similar polarity and bonding character.
Stoichiometry & Chemical ReactionsLimiting Reagent
The reactant that is completely consumed first and therefore determines the maximum amount of product obtainable.
States of Matter & Gas LawsLiquid State
The state of matter with a definite volume but no fixed shape, in which particles are close together yet free to move past one another.
Chemical Bonding & Molecular StructureLone Pair
A pair of valence electrons localised on one atom and not involved in bonding.
Foundations of ChemistryMatter
Anything that occupies space and possesses rest mass, existing in the solid, liquid, gas or plasma state.
Biochemistry & Polymer ChemistryMetabolism
The complete set of chemical reactions occurring within a living organism.
Solutions & Colligative PropertiesMiscibility
The ability of two liquids to mix in all proportions to form a single homogeneous phase.
Electrochemistry & RedoxMolar Conductivity
The conductivity of a solution divided by the molar concentration of the electrolyte.
Solutions & Colligative PropertiesNegative Deviation
Behaviour in which a solution exerts a lower vapour pressure than Raoult's law predicts.
Biochemistry & Polymer ChemistryNucleotide
The monomer of nucleic acids, consisting of a nitrogenous base, a five-carbon sugar and a phosphate group.
States of Matter & Gas LawsPartial Pressure
The pressure that one component of a gas mixture would exert if it alone occupied the whole volume.
Acids, Bases & SaltsPhenolphthalein
An acid–base indicator that is colourless in acid and pink in alkaline solution, changing between pH 8.3 and 10.0.
Biochemistry & Polymer ChemistryPhospholipid
A lipid in which one fatty acid of a triglyceride is replaced by a phosphate-containing group.
Biochemistry & Polymer ChemistryPhotosynthesis
The process by which plants use light energy to convert carbon dioxide and water into carbohydrate and oxygen.