Answer Happy

QUESTION 9
An electrochemical cell is expressed as following:
SCE || AgBr (saturated), Br- (0.053
M) | Ag
Given ESCE (Hg/Hg2Cl2) = 0.244 V,
E0Ag/AgBr = 0.073 V, what is the
half-cell potential at cathode?
0.244 V
0.073 V
0.148 V
-0.095 V
QUESTION 10
An electrochemical cell is expressed as following:
SCE || AgBr (saturated), Br- (0.053
M) | Ag
Given ESCE (Hg/Hg2Cl2) = 0.244 V,
E0Ag/AgBr = 0.073 V, what is the
full-cell potential?
-0.171
0.171
0.095 V
-0.095 V
QUESTION 12
An electroanalytical measurement needs be conducted at
70°C. which reference electrode should be used?
Standard hydrogen electrode (SHE)
Saturated calomel electrode (SCE)
Ag/AgCl electrode
Cu/CuCl2 electrode