An electrolytic cell is constructed to produce aluminum metal and chlorine gas f

Question

An electrolytic cell is constructed to produce aluminum metal and chlorine gas from aluminum chloride (AlCl3).
A. Write the half-reaction that occurs at the anode:

B. Write the half-reaction that occurs at the cathode.

C. Write the balanced equation for the net reaction.

D. Calculate the standard cell potential (E?cell).

E. How many grams of aluminum metal and how many liters of chlorine gas can be produced by passage of 4.8 amp of current for 2.3 hour under standard conditions (25?C and 1 atm pressure)?

Explanation / Answer

B) The half-reaction at Cathode is

In the case of the aluminum, it can gain 3 electrons, and therefore becomes an atom rather than an ion.

Al3+(aq) +3e- -> Al(s)

A)The half-reaction at Anode is

In the case of the chlorine, it can lose 3 electrons, and therefore becomes an atom rather than an ion, as well.

3Cl-(aq) -> 1/2Cl2(g) + 3e-

C)Net reaction

Al3+ 3Cl- ->Al + 1/2Cl2 +3e-

D)The standard cell potential of cathode is

E

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

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