Potentiometry

Question 1

Effect of electrolyte on solubility

Answer 1

Incr [NaCl], incr solubility (shielded by counter ions)

Question 2

ionic strength

Answer 2

mew = 1/2sum(cz^2)
Monovalent salts: mew=c
Other salts: mew>c

Question 3

activity

Answer 3

a=gamma*c

Neutral: gamma=1
Ions:
log(gamma)= -0.51z^2sqrt(mew)

Question 4

Standard cell notation

Answer 4

anode ll cathode

Question 5

Galvanic cell

Answer 5

E is positive, spon

Question 6

Electrolytic cell

Answer 6

E is negative, non-spon