Results for “Mole”
14 terms
Intermolecular Forces
Chemical Bonding & Molecular Structure
kJ/mol
The comparatively weak attractions acting between separate molecules rather than within them.
Ideal Gas
States of Matter & Gas Laws
Dimensionless
A hypothetical gas whose particles have zero volume and exert no intermolecular forces, obeying pV = nRT exactly at all conditions.
pV = nRT
Ideal Solution
Solutions & Colligative Properties
Dimensionless
A solution in which the interactions between unlike molecules are identical to those between like molecules, so Raoult's law holds at all compositions.
ΔH_mix = 0, ΔV_mix = 0
Infrared Spectroscopy
Analytical Chemistry & Spectroscopy
cm⁻¹
A technique that identifies functional groups from the infrared frequencies a molecule absorbs as its bonds vibrate.
ν̃ = (1/2πc)√(k/μ)
Ionisation Energy
Atomic Structure & Periodicity
kJ/mol
The minimum energy needed to remove the most loosely held electron from one mole of gaseous atoms in their ground state.
X(g) → X⁺(g) + e⁻
Ion–Dipole Interaction
Chemical Bonding & Molecular Structure
kJ/mol
The attraction between an ion and the oppositely charged end of a polar molecule.
E ∝ q μ / r²
Isoelectric Point
Biochemistry & Polymer Chemistry
Dimensionless
The pH at which a molecule carries no net electrical charge.
pI = (pKa₁ + pKa₂)/2
Isomerism
Organic Chemistry
Dimensionless
The existence of two or more compounds with the same molecular formula but different arrangements of atoms.
Isotopic Peak
Analytical Chemistry & Spectroscopy
Da
A peak appearing at a higher mass than the main ion because the molecule contains a heavier isotope.
M+1, M+2
Integration in NMR
Analytical Chemistry & Spectroscopy
Dimensionless
The measurement of the area under each NMR signal, which is proportional to the number of nuclei giving rise to it.
area ∝ number of nuclei
Internal Energy
Thermochemistry & Thermodynamics
J
The total kinetic and potential energy of all the particles within a system.
ΔU = q + w
Ionic Bond
Chemical Bonding & Molecular Structure
kJ/mol
The electrostatic attraction between oppositely charged ions formed by the complete transfer of electrons from one atom to another.
F ∝ q₁q₂ / r²
Isoelectronic Species
Atomic Structure & Periodicity
Dimensionless
Atoms or ions that possess the same number of electrons and the same electron configuration.
Ideal Gas Law
States of Matter & Gas Laws
Various
The equation of state relating the pressure, volume, amount and absolute temperature of an ideal gas.
pV = nRT