The chemical reactions:
CuSO4(aq) + Zn(s) → ZnSO4(aq) + Cu(s) Zn(s) + H2SO4(aq) → ZnSO4(aq)
+ H2(g) The copper on the surface quickly reacts with oxygen
according to the following reaction: 2Cu(s) + O2(g) → 2CuO(s)
Experimental Procedure Dissolve
completely about 0.5 to 0.7 g of copper (II) sulphate pentahydrate
in about 10 to 20 mL of deionized water. Calculate the amount of
zinc powder that must be added to a copper sulfate solution so that
the sulfate completely reacts....
Consider the following liquid junction cell at room
temperature:
Zn(s) / ZnSO4(aq) // CuSO4(aq) / Cu(s)
The left side of the cell contains an electrolyte solution at
9.26*10^-2 M and the right side of the cell contains an electrolyte
solution at 7.32*10^-2 M.
Calculate the observed cell potential using the Nernst Equation,
the Debye-Huckel Limiting Law, and ionic activities.
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.
A Zn-Cu battery is
constructed as follows at 25oC
Zn(s) |
Zn+2(aq) (0.20 M) ||
Cu+2(aq) (2.5 M) |
Cu(s)
The mass of each electrode is 200.0
gram and the volume of the electrolytes is 1.0 L
a) calculate the
cell potential of the cell
b) calculate the
mass of each electrode after 10.0 amp. of current has flowed for
10.0 hour Remember, the anode loses mass because of the oxidation
reaction while the cathode gains mass due to the...
what reaction type is
Cu2+ + OH- --->
Cu(OH)2
CuSO4 x 5H2O ----> CuSO4
CuSO4 ------> CuSO4 x
5H2O
NH4Cl -----> NH3 + HCl
Reaction Type Options are:
1. Combination, Synthesis or Formation Reaction
2. Decomposition Reaction
3. Single Displacement or Single Replacement Reaction
4. Double Displacement or Double Replacement Reaction