Results for “Mole”
256 terms · page 5 of 11
Molar Mass
The mass of one mole of a substance, numerically equal to its relative atomic or molecular mass expressed in grams.
Foundations of ChemistryMolar Volume
The volume occupied by one mole of a substance under stated conditions of temperature and pressure.
Solutions & Colligative PropertiesMolarity
The concentration of a solution expressed as moles of solute per litre of solution.
Biochemistry & Polymer ChemistryMonomer
The small molecule that repeats to form a polymer.
Acids, Bases & SaltsMonoprotic Acid
An acid that can donate only one proton per molecule.
Solutions & Colligative PropertiesNon-Ideal Solution
A solution that departs from Raoult's law because interactions between unlike molecules differ from those between like molecules.
Analytical Chemistry & SpectroscopyNuclear Magnetic Resonance Spectroscopy
A technique that probes molecular structure using the resonance of atomic nuclei in a strong magnetic field.
Organic ChemistryOptical Isomerism
Stereoisomerism in which molecules are non-superimposable mirror images and rotate plane-polarised light in opposite directions.
Solutions & Colligative PropertiesOsmosis
The net movement of solvent molecules through a semipermeable membrane from a dilute to a concentrated solution.
Chemical Kinetics & CatalysisPhotochemical Quantum Yield
The number of molecules reacting for each photon of light absorbed by the system.
Stoichiometry & Chemical ReactionsPhotochemical Reaction
A reaction initiated by the absorption of light, which promotes a molecule to an electronically excited state.
Chemical Kinetics & CatalysisPhysisorption
Weak adsorption in which molecules are held to a surface by van der Waals forces alone.
Chemical Bonding & Molecular StructurePolarisability
The ease with which the electron cloud of an atom, ion or molecule can be distorted by an external electric field.
Biochemistry & Polymer ChemistryPolymer
A large molecule built from many repeating structural units joined by covalent bonds.
Acids, Bases & SaltsPolyprotic Acid
An acid capable of donating more than one proton per molecule.
Biochemistry & Polymer ChemistryProtein
A large biomolecule made of one or more chains of amino acids folded into a specific three-dimensional shape.
Analytical Chemistry & SpectroscopyRaman Spectroscopy
A vibrational technique based on the small shift in frequency of light scattered inelastically by molecules.
Solutions & Colligative PropertiesRaoult's Law
The partial vapour pressure of each component of an ideal solution equals its mole fraction times its pure vapour pressure.
States of Matter & Gas LawsReal Gas
An actual gas whose behaviour deviates from the ideal gas law because its molecules occupy volume and attract one another.
Stoichiometry & Chemical ReactionsRearrangement Reaction
A reaction in which the atoms of a molecule are reorganised to give a structural isomer.
Chemical Bonding & Molecular StructureResonance
The description of a molecule whose true structure is a weighted average of two or more valid Lewis structures.
Chemical Bonding & Molecular StructureResonance Energy
The extra stability a molecule gains from electron delocalisation, measured against the most stable single Lewis structure.
States of Matter & Gas LawsRoot Mean Square Speed
The square root of the average of the squared molecular speeds in a gas sample.
Acids, Bases & SaltsSelf-Ionisation of Water
The reaction in which two water molecules transfer a proton to give a hydronium and a hydroxide ion.