1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Norma-Jean [14]
3 years ago
11

An electrochemical cell has the following standard cell notation: Al(s) | Al3+(aq) || Mg2+(aq) | Mg(s)

Chemistry
1 answer:
Soloha48 [4]3 years ago
5 0

Answer:

a. Al(s) ⇄ Al⁺³(aq) + 3e⁻ (oxidation)

Mg²⁺(aq) + 2e⁻ ⇄ Mg(s) (reduction)

b. ΔE° = + 0.715 V

c.  It's an electrolytic cell, because it's a nonspontaneous reaction.

d. 2Al(s) + 3Mg²⁺(aq) ⇄ 2Al⁺³(aq) + 3Mg(s)

Explanation:

a. By the notation given, first is represented the oxidation reaction and then the reduction reaction, so they are:

Al(s) ⇄ Al⁺³(aq) + 3e⁻ (oxidation)

Mg²⁺(aq) + 2e⁻ ⇄ Mg(s) (reduction)

b. The standard potential of the cell (ΔE°) is the reduction potential of the oxidation less the reduction potential of the reduction. The reduction potentials are:

Al(s) = -1.66 V

Mg(s) = -2.375 V

ΔE° = -1.66 - (-2.375)

ΔE° = + 0.715 V

c. It's an electrolytic cell.

A galvanic cell is spontaneous, so the cathode (reduction) has a higher E° than the cathode (oxidation). In this case, the oxidation reaction has a higher E°, so the reaction is nonspontaneous and it's necessary an external force to it happen, so it's an electrolytic cell.

d. 2Al(s) + 3Mg²⁺(aq) ⇄ 2Al⁺³(aq) + 3Mg(s)

The number of electrons must be the same, so the oxidation reaction is multiplied by 2, and the reduction reaction by 3.

You might be interested in
Is pepperoni pizza a compound or mixture?​
stiks02 [169]

Answer:

Mixture.

Pizza is a mixture of a lot of things like dough, sauce, meat, veggies, cheese, etc.

Each of those things is a mixture of other things like proteins, starches, sugars, water, fiber, vitamins, minerals, etc.

3 0
3 years ago
Read 2 more answers
Conduction and Convection involve the movement of particles. Radiation does not <br> True or False
Rom4ik [11]

Answer:

False

Explanation:

Because it is false heat will always transfer so it require matter

6 0
3 years ago
Read 2 more answers
Does a true solution have water?
Alexandra [31]

Answer:

Solutions in water are especially common, and are called aqueous solutions. Non-aqueous solutions are when the liquid solvent involved is not water.

5 0
3 years ago
After 1911, most scientists accepted the theory that nucleus of an atom was very dense and very small and has a positive charge.
Yanka [14]
After 1911 most scientists accepted<span> the </span>theory<span> that the </span>nucleus<span> of an </span>atom<span> was </span>very dense<span> and </span>very small<span> and </span>has<span> a </span>positive charge<span>. </span>
8 0
3 years ago
Which of the following is not a compound?<br>Cl<br>CO2<br>NaCl<br>HCl​
Ahat [919]
The one that is not a compound is Cl
5 0
3 years ago
Other questions:
  • In the reaction C6H12 + __O2 → 6H2O + 6CO2, what coefficient should be placed in front of O2 to balance the reaction? 6 9 18 no
    11·1 answer
  • Please help ill medal and fan!
    8·1 answer
  • Which type of chemical reaction occurs in 2KClO3 Right arrow. 2KCl + 3O2
    5·1 answer
  • Expressed to the correct number of significant figures, what is the correct sum of (3.04g + 4.134g + 6.1g)?
    12·1 answer
  • Ionization energies tend to do what across a period
    12·1 answer
  • What is the molarity of 2.5 mol of H2SO4 dissolved in 1.00 L of solution? <br> Need FAST!
    5·1 answer
  • How many atoms are in 3N4010 ​
    7·1 answer
  • Generally the periodic trends of the d and f block is similar to the main group elements trends.
    14·1 answer
  • Anne completely fills the fuel tank of her car with a mixture of gasoline and ethanol, C2H5OH. When filled, the fuel tank contai
    8·1 answer
  • A kid walking around with a balloon on a summer day when the temperature outside is 300 k contains the volume of 4 l goes into a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!