Search results for “pH”

Isomorphism States of Matter & Gas Laws Dimensionless The property of two or more different substances crystallising in the same structural form.

Indicator Range Acids, Bases & Salts Dimensionless The span of pH over which an indicator's colour visibly changes, roughly one unit either side of its pKa. pH = pK_In ± 1

Interstitial Void States of Matter & Gas Laws Dimensionless An empty space between the packed spheres of a crystal lattice, capable of hosting a smaller ion or atom. r_void / r_sphere = 0.225 or 0.414

Ionisation Isomerism Inorganic & Coordination Chemistry Dimensionless Isomerism arising when an anion inside the coordination sphere exchanges places with the counter ion outside it.

Isoelectric Point Biochemistry & Polymer Chemistry Dimensionless The pH at which a molecule carries no net electrical charge. pI = (pKa₁ + pKa₂)/2

Instantaneous Rate Chemical Kinetics & Catalysis mol/(L·s) The rate of a reaction at one particular moment, given by the gradient of the concentration–time curve at that point. rate = d[A]/dt

Ionic Equilibrium Chemical Equilibrium mol/L An equilibrium involving ions in solution, such as the dissociation of weak electrolytes or the dissolution of sparingly soluble salts.

Ionic Product of Water Acids, Bases & Salts mol²/L² The equilibrium constant for the self-ionisation of water, equal to the product of the hydrogen and hydroxide ion concentrations. Kw = [H⁺][OH⁻] = 1.0 × 10⁻¹⁴

Ionising Radiation Nuclear & Radiochemistry eV Radiation with enough energy to remove electrons from atoms, creating ions.

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

Isobaric Process Thermochemistry & Thermodynamics J A process carried out at constant pressure. q_p = ΔH

IUPAC Nomenclature of Complexes Inorganic & Coordination Chemistry Dimensionless The systematic rules for naming coordination compounds unambiguously.

ICE Table Chemical Equilibrium mol/L A systematic tabulation of Initial, Change and Equilibrium amounts used to solve equilibrium problems.

Immiscible Liquids Solutions & Colligative Properties Dimensionless Two liquids that do not dissolve in one another and separate into distinct layers.

Results for “pH”