2C things to memorize

Question 1

Rxn quotient Q

Answer 1

activity products/activity reactants

Question 2

activity for solid and liquid chemical species at STP

Answer 2

activity= 1

Question 3

activity for aqueous species

Answer 3

= to concentration (in M)

Question 4

activity in gaseous species at STP

Answer 4

= to pressure (in ATM)

Question 5

Equilibrium constant K at equilibrium

Answer 5

Q=K

Question 6

Good salt bridge ions

Answer 6

Na+, K+, Cl-, NO3- (soluble, not reactive with electrodes or species in solution)

Question 7

Good inert electrodes

Answer 7

Pt, C(graphite)

Question 8

H2O ligand name

Answer 8

aqua

Question 9

NH3 ligand name

Answer 9

ammine

Question 10

CO ligand name

Answer 10

carbonyl

Question 11

CH3NH2 ligand name

Answer 11

methylamine

Question 12

NO ligand name

Answer 12

nitrosyl

Question 13

C5H5N ligand name

Answer 13

pyridine

Question 14

ethylenediamine (en)

Answer 14

NH2CH2CH2N2

Question 15

oxalato

Answer 15

C2O4 2-

Question 16

ethylenediaminetetraacetic acid (EDTA)

Answer 16

C10H16N2O8 4-

Question 17

diethylenetriamine (dien)

Answer 17

(NH2CH2CH2)2NH

Question 18

sulfato

Answer 18

SO4 2-

Question 19

thiosulfato

Answer 19

S2O3 2-

Question 20

nitrito-N (nitro)

Answer 20

NO2 -

Question 21

nitrito-O (nitrito)

Answer 21

ONO-

Question 22

thiocyanato-S (thiocyanato)

Answer 22

SCN-

Question 23

thiocyanato-N (isothiocyanato)

Answer 23

NCS-

Question 24

prefixes for TN complexes

Answer 24

1: mono 2: di 3: tri 4: tetra 5: penta 6: hexa

Question 25

greek prefixes

Answer 25

2: bis 3: tris 4: tetrakis

Question 26

copper complex anion

Answer 26

cuprate

Question 27

gold complex anion

Answer 27

aurate

Question 28

iron complex anion

Answer 28

ferrate

Question 29

lead complex anion

Answer 29

plumbate

Question 30

tin complex anion

Answer 30

stannate

Question 31

silver complex anion

Answer 31

argentate

Question 32

Rules for naming transition metal coordination complexes.

Answer 32

1. If an ionic compound, cation followed by anion. 2. In complex, ligands named before metal cation. 3. Use Greek prefixes to denote the number of ligands. If the ligand contains a Greek prefix in the ligand name, use bis-, tris-, and tetrakis- prefixes. (Note: some references apply bis-, tris-, and tetrakis- to all polydentate ligands as appropriate). 4. Modify ligand names: -ide becomes -o, -ite becomes -ito, -ate becomes -ato 5. Oxidation state of the central metal atom is designated with a Roman numeral in parentheses. 6. If the complex ion has a negative charge, add “ate” to the name of the metal.

Question 33

Rules for writing transition metal complex formulas

Answer 33

1. Transition metal complex goes inside the [brackets]. 2. Metal center written first. 3. Ligands written next, in alphabetical order by name (not formula). 4. If counter ions are present, they balance the charge of the transition metal complex ion as an ionic compound. Counter ions go outside the brackets of the complex. Always write cation first, anion second.