Write the Standard Cell Notation and Half Reactions of the following voltaic cel

Question

Write the Standard Cell Notation and Half Reactions of the following voltaic cell combinations.

1. Zinc Nitrate (0.20 M) and Copper Nitrate (0.30 M); Copper – Anode, Zinc – Cathode

2. Lead Sulfate (0.25 M) and Zinc Sulfate (0.50 M); Lead – Cathode, Zinc – Anode

3. Copper Sulfate (0.65 M) and Lead Sulfate (0.20 M); Copper – Anode, Zinc – Cathode

4. Silver Nitrate (0.15 M) and Lead Nitrate (0.40 M); Silver – Anode, Lead – Cathode

5. Aluminum Nitrate (0.35 M) and Silver Nitrate (0.50); Aluminum – Anode, Silver – Cathode

6. Copper Nitrate (0.45 M) and Silver Nitrate (0.25 M); Copper – Anode, Silver – Cathode

Explanation / Answer

Standard Cell Notation : The cell notation is noted as anode and cathode (half-cells) are separated by two bars which represent a salt bridge, with the anode on the left and cathode on the right side of the bar.

left electrode (anode) ll right electrode (cathode)

1,

Cell Notation: CuCu2+(0.3 M) Zn2+(0.2 M)Zn

Half Reactions: Cu(s) -----> Cu2+(aq) + 2e-

Zn2+(aq)+ 2e- ----->Zn(s)

2,

Cell Notation:ZnZn2+(0.5 M) Pb2+(0.25 M)Pb

Half Reactions:  Zn(s) ----->Zn2+(aq) + 2e-

Pb2+(aq) + 2e- ----->Pb(s)

3.

Cell Notation: CuCu2+(0.65 M) Pb2+(0.20 M)Pb

Half Reactions:  Cu(s) -----> Cu2+(aq) + 2e-

Pb2+(aq) + 2e- ----->Pb(s)

4.

Cell Notation: AgAg+(0.15 M) Pb2+(0.40 M)Pb

Half Reactions: 2Ag(s) ----->2Ag+(aq) + 2e-

   Pb2+(aq) + 2e- ----->Pb(s)

5.

Cell Notation: AlAl3+(0.35 M) Ag+(0.5 M)Ag

Half Reactions:  Al(s) ----->Al3+(aq) + 3e-

3Ag+(aq)+ 3e- ----->3Ag(s)

6.

Cell Notation: Cu Cu2+(0.45 M) Ag+(0.25 M)Ag

Half Reactions:  Cu(s) -----> Cu2+(aq) + 2e-

2Ag+(aq)+ 2e- ----->2Ag(s)

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.