5th long exam Flashcards
difference between oxidizing agent and reducing agent
oxidizing agent - takes electron from subs
reducing agent - give electron from subs
it completes the electrical circuit and allow ions to flow through both half cells
salt bridge
anode -
cathode -
anode - negative electrode in a voltaic cell (-/+) OXIDATION
cathode - positive electrode in a voltaic cell (+/-) REDUCTION
it provides a surface for the reaction and complete the circuit
inert/ inactive electrode
examples of inactive electrodes
unreactive subs such as graphite, platinum, palladium and gold
an active component in its half-cell and is a reactant or product in the overall reaction
active electrode
anode components are written on the ___ while the cathode components are written on the ___
left
right
it is the most widely used complexometric titrant
EDTA
it is a hexadentate ligand
EDTA
what is the ratio of the EDTA that combines with metal ions
1:1 ratio regardless of the charge on the cation
it is a typical metal-ion indicator
Eriochrome black T
is produced when a metal ion coordinates with two or more donor groups of a single ligand to form a five- or six- membered heterocyclic ring.
chelate
must have at least one pair of unshared electrons
ligand
a ligand that has two groups available for covalent bonding is called
bidentate
it involve a metal ion M reacting with a ligand L to form a complex ML
complexation reactions
titrations with silver nitrate are sometimes called
argentometric titrations
what are the 3 types of end points are encountered in titrations with silver nitrate
chemical
potentiometric
amperometric
it is the formation of a colored precipitate
the mohr method
it is a typical adsorption indicator
fluorescein
it is the formation of forming a colored complex
the volhard method
it is a conductor used to make electrical contact with a non-metallic part of an electrochemical cell
electrode
a device that converts chemical energy into electrical energy (galvanic cell or battery) or uses electrical energy to drive a non-spontaneous chemical reaction (electrolytic cell).
electrochemical cells
