Question

1. Construct a nickel-copper voltaic cell with the cell notation:
Ni (s) │Ni +2 ││Zn +2 │Zn (s)

a. Draw a diagram of the cell. Label the location of the following components: Ni (s) , Ni(NO 3 ) 2(aq) , Cu (s) ,
Cu(NO 3 ) 2(aq) , salt bridge, and electrical wire.
b. Write the reduction half-reaction occurring in the cell.
c. Write the oxidation half-reaction occurring in the cell.
d. Label the anode and cathode of the cell.
e. Use an arrow to indicate the direction of the flow of electrons along the electrical wire.
f. Predict the direction of the flow for positively charged ions (cations) with respect to the cathode half-
reaction
g. Predict the direction of the flow for negatively charged ions (anions) with respect to the anode half-cell.
2. Consider a salt bridge galvanic cell represented by the following reaction:
MnO 4 -1 (aq) + 8H +1 (aq) + 5Fe +2 (aq) Mn +2 (aq) + 5Fe +3 (aq) + 4H 2 O
a. Name the electrode that can be used at the anode ___________________________
b. What is the reaction occurring at the cathode? _____________________________________________
c. Write the abbreviated cell notation for the reaction _________________________________________

Answer 1

Answer:

This chemistry....

Swaminathan was a key player in Asia's Green Revolution, the transformation of agriculture in the 1960s that allowed food production to keep pace with population growth. For his leadership in spearheading the introduction of high-yielding varieties of wheat and rice to India's farmers, he received the first World Food Prize in 1987.