Silver Electrode Study of Equilibria
Temperature of solution ____25.0____ OC
Corresponding Nernst Constant ___59.2_____
Calculated value of k ____466.31____
Calculated Eref electrode ___332.7____
Experimental Data
Condition
Total
Volume
Equilibrium
Molarity
of Ligand
Ecell(mV)
“Y”
Log[NH3]
Start
100 mL
---------------
227
--------
---------------
Cl- added
110 mL
8.182*10^-
4 M
81.0
--------
---------------
NH3 added
120 mL
0.0439 M
-25.6
4.18
-1.36
NH3 added
130 mL
0.0810 M
-64.7
4.84
-1.09
NH3 added
140 mL
0.1129 M
-85.1
5.19
-0.947
I- added
150 mL
6.0*10^-4
M
-270.0
--------
---------------
Calculated Molarity of Stock NH3 __0.527 M_____
Calculated Constants
Ksp for AgCl 2.28*10^-10
Kf for Ag(NH3)+p 2.01*10^7 p for Ag(NH3)+p 2.30 (~2)
Ksp for AgI 1.97*10^-16
EO for AgCl 228 mV EO for Ag(NH3)+p 367 mV
EO for AgI -130 mv
