The arrangement of using Mg/MgSO4 and Cu/CuSO4 couples as the
half-cells to create a galvanic cell.
a) Draw a picture showing a Daniell cell-type experimental
apparatus using the half-cells stated in this problem.
b) Write the notation for a cell diagram for this galvanic
cell.
c) Identify the anode.
d) Identify the cathode.
e) Indicate the signs of the electrodes.
f) Describe the flow of electrons through the external wire.
g) Describe the flow of ions in the salt bridge.
Consider the Daniell cell, for which the overall cell reaction
is Zn(s)+Cu2+(aq)⇌Zn2+(aq)+Cu(s) The concentrations of CuSO4 and
ZnSO4 are 2.20×10−3 m and 1.10×10−3 m ,
respectively.
A)
Calculate E setting the activities of the ionic species equal to
their molalities.
Express your answer to four significant figures and include the
appropriate units.
B)
Calculate γ±,ZnSO4 for the half-cell solutions using the
Debye-Huckel limiting law.
Express your answer using three significant figures.
C)
Calculate γ±,CuSO4 for the half-cell solutions using the...
Copper can be electroplated at the cathode of an electrolysis
cell by the half-reaction.
Cu2+(aq)+2e−→Cu(s)Cu2+(aq)+2e−→Cu(s)
Part A
How much time would it take for 338 mgmg of copper to be plated
at a current of 7.1 AA ?
Balance each of the following reations using the half reaction
method. Show all work
a. Bi(OH)3(S) + Sn(OH)3-(aq)
---> Sn(OH)62- (aq) + Bi(s) (Basic
solution)
b. BrO3-(aq) + Sb3+(aq) --->
Br
- (aq) + Sb5+ (aq) (acidic solution)
Thank
you for your help!
For the following reaction: Ni2+(aq) + Co(s) ⇌ Ni(s) +
Co2+(aq)
a) Calculate E0 (E^0)
b) Calculate G0 (delta G^0)
c)Calculate K
d) If you start with 10.0 g of Ni and 10.0 g of Co in 100.0 mL
solution (containing 1.0 M solution of CoCl2 and 0.0000100 M
solution of NiCl2 ) which way the reaction will move toward in
order to reach equilibrium?
e) Calculate the G (delta G) for the reaction in part d.
f)Calculate the equilibrium...
Given the following reaction, Cu2+(aq) + Zn(s) → Cu(s) +
Zn2+(aq) E° = 1.10 V.
Use the Nernst equation to calculate the cell potential for the
cell described with standard line notation below.
Zn|Zn2+(0.5082 M)||Cu2+(0.2699 M)|Cu
Units are not required. Report answer to three decimal
places.
Please explain all of your steps! Thanks!
Balance by the half-reaction method, both in acid and in
base:
Cr2O3 (s) + H2O2
(aq) -----> CrO42- (aq) + H2O
(l)
Reductant half-reaction:
Oxidant half-reaction:
Net ionic full reaction in acid:
Net ionic full reaction in base: