Definitions Flashcards
State what is meant by the term partition coefficient. /1
it is the ratio of concentration of solutes in two solvents
State what is meant by the term co-ordination number. /1
number of dative bonds formed with metal ion
Define the term transition element./1
element forms stable ions with partially filled d subshell
Define the term monodentate ligand. /1
Ligand donates one pair of electron to central atom to form 1 dative bond
Define the term standard electrode potential /2
it is the voltage of an electrode compared to SHE cell under standard conditions
Define the term buffer solution. /2
a solution which resists a change in pH when a small amount of
acid or an alkali is added to the solution
Define enthalpy change of solution. /1
enthalpy change when one mole of a solute is dissolved in water to form infinitely dilute solution
State what is meant by bidentate ligand. /2
species with two lone pairs of electrons
that form dative bond to central metal
State what is meant by isoelectric point. /1
pH at which a molecule has no overall charge
Define monodentate ligand. /2
ligand donates one lone pair to central metal to form one dative bond
Define enantiomers./1
rotate the plane of polarised light in opposite direction
Define the term complex ion. /1
molecule formed by a central metal bonded to one or more ligands
Define stability constant Kstab. /1
the equilibrium constant for the formation of the complex ion in a solvent
Define first electron affinity. /2
energy change when one mole of electrons is gained by one mole of gaseous atoms
Explain what is meant by optically active. /1
a substance that is able to ROTATE the plane of polarised light in opposite directions
