Results for “pH”
291 terms · page 10 of 13
Starch
The storage polysaccharide of plants, consisting of amylose and amylopectin.
Acids, Bases & SaltsStepwise Ionisation
The successive loss of protons from a polyprotic acid, each governed by its own equilibrium constant.
Solutions & Colligative PropertiesStock 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 & CatalysisTermolecular Reaction
An elementary step requiring the simultaneous collision of three species.
Biochemistry & Polymer ChemistryTertiary Structure
The complete three-dimensional folded shape of a single polypeptide chain.
Thermochemistry & ThermodynamicsThermochemical Equation
A balanced chemical equation that also states the enthalpy change for the amounts shown.
Solutions & Colligative PropertiesUnsaturated Solution
A solution containing less dissolved solute than it could hold at the given temperature.
Acids, Bases & SaltsWeak Acid
An acid that ionises only partially in aqueous solution, establishing an equilibrium with its conjugate base.
Inorganic & Coordination ChemistryWerner's Theory
The 1893 theory proposing that metals exhibit two types of valence and that ligands occupy fixed positions in space around the metal.
Biochemistry & Polymer ChemistryZwitterion
A molecule carrying both a positive and a negative charge but no net overall charge.
Acids, Bases & SaltsAcidic Solution
A solution in which the hydrogen ion concentration exceeds the hydroxide ion concentration.
Electrochemistry & RedoxAnode
The electrode at which oxidation occurs.
Foundations of ChemistryAtom
The smallest particle of an element that retains the chemical identity of that element.
Inorganic & Coordination ChemistryBidentate Ligand
A ligand that binds to the same metal centre through two donor atoms, forming a ring.
Chemical Kinetics & CatalysisBimolecular Reaction
An elementary step in which two species collide and react.
Biochemistry & Polymer ChemistryBiodegradable Polymer
A polymer that can be broken down into simple substances by the action of microorganisms.
Analytical Chemistry & SpectroscopyBlank
A sample containing everything except the analyte, measured to correct for background signal.
States of Matter & Gas LawsBody-Centred Cubic
A cubic arrangement with particles at the eight corners plus one at the centre of the cell.
Electrochemistry & RedoxCalomel Electrode
A reference electrode based on the equilibrium between mercury, mercury(I) chloride and chloride ions.