5th long exam

Question 1

difference between oxidizing agent and reducing agent

Answer 1

oxidizing agent - takes electron from subs
reducing agent - give electron from subs

Question 2

it completes the electrical circuit and allow ions to flow through both half cells

Answer 2

salt bridge

Question 3

anode -
cathode -

Answer 3

anode - negative electrode in a voltaic cell (-/+) OXIDATION
cathode - positive electrode in a voltaic cell (+/-) REDUCTION

Question 4

it provides a surface for the reaction and complete the circuit

Answer 4

inert/ inactive electrode

Question 5

examples of inactive electrodes

Answer 5

unreactive subs such as graphite, platinum, palladium and gold

Question 6

an active component in its half-cell and is a reactant or product in the overall reaction

Answer 6

active electrode

Question 7

anode components are written on the ___ while the cathode components are written on the ___

Answer 7

left
right

Question 8

it is the most widely used complexometric titrant

Answer 8

EDTA

Question 9

it is a hexadentate ligand

Answer 9

EDTA

Question 10

what is the ratio of the EDTA that combines with metal ions

Answer 10

1:1 ratio regardless of the charge on the cation

Question 11

it is a typical metal-ion indicator

Answer 11

Eriochrome black T

Question 12

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.

Answer 12

chelate

Question 13

must have at least one pair of unshared electrons

Answer 13

ligand

Question 14

a ligand that has two groups available for covalent bonding is called

Answer 14

bidentate

Question 15

it involve a metal ion M reacting with a ligand L to form a complex ML

Answer 15

complexation reactions

Question 16

titrations with silver nitrate are sometimes called

Answer 16

argentometric titrations

Question 17

what are the 3 types of end points are encountered in titrations with silver nitrate

Answer 17

chemical
potentiometric
amperometric

Question 18

it is the formation of a colored precipitate

Answer 18

the mohr method

Question 19

it is a typical adsorption indicator

Answer 19

fluorescein

Question 20

it is the formation of forming a colored complex

Answer 20

the volhard method

Question 21

it is a conductor used to make electrical contact with a non-metallic part of an electrochemical cell

Answer 21

electrode

Question 22

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).

Answer 22

electrochemical cells