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
docker41 [41]
3 years ago
10

Calculate the cell potential, the equilibrium constant, and the free energy change for

Chemistry
1 answer:
Tresset [83]3 years ago
5 0

Answer:

Explanation:

Ba(s) + Mn²⁺ (aq,1M)  →      Ba²⁺ (aq,1M) + Mn(s)

Ba⁺²(aq) +2e →  Ba(s) ,  E° =  −2.90 V  

Mn⁺²(aq) +2e → Mn(s),  E⁰  =0.80 V

Anode reaction :

Ba(s)  →  Ba⁺²(aq) +2e        E° =  −2.90 V  

Cathode reaction :

Mn⁺²(aq) +2e → Mn(s)          E⁰  =0.80 V

Cell potential = Ecathode  - Eanode

Ecell  = .80 - ( - 2.90 )

Ecell = 3.7 V .

equilibrium constant ( K ) :

Ecell = .059 log K  / n

n = 2

3.7  = .059 log K  / 2

log K = 125.42

K = 2.63 x 10¹²⁵ .

Free energy change :

ΔG = - n F Ecell

= - 2 x 96500 x 3.7

= 714100 J

= 7.141 x 10⁵ J .

You might be interested in
5 QUESTIONS PLZ ANSWER ASAP<br><br> SCIENCE
sweet-ann [11.9K]
A. Plastic is a good insulator.
3 0
3 years ago
Read 2 more answers
Which of the following represents a chemical change?
maw [93]

That Answer would be...

C. Fireworks exploding

because this is a chemicals change the creates the fireworks.

6 0
3 years ago
Read 2 more answers
When a substance such as ice melts, its temperature increases. Describe what happens to the arrangement of the water molecules a
gogolik [260]

Answer:

The molecules absorb heat and acquire more kinetic energy.

Explanation:

In a solid, the solids only vibrate about their mean positions but do not translate. When energy is supplied to the molecule in the form of heat, the molecules vibrate faster. Eventually, they acquire sufficient energy to leave their mean positions and translate. Hence the solid crystal collapses.

When ice is heated, water molecules acquire sufficient kinetic energy to translate. The intermolecular bonds are gradually broken in the solid framework as heat is absorbed. The heat required for this is known as the latent heat of fusion.

The temperature remains constant until phase transition is over, then temperature rise resumes.

7 0
3 years ago
Read 2 more answers
What is the mass of oxygen in 10.0 grams of water?
skelet666 [1.2K]

Answer:

The answer is 16.00 amu.

7 0
3 years ago
The elementary reaction_.
zlopas [31]

Answer:

                                                 

Explanation:

                             

7 0
2 years ago
Read 2 more answers
Other questions:
  • If an electron fell to a lower orbit or energy level, energy would be
    14·2 answers
  • Which of the following is a common groundwater contaminant?
    6·2 answers
  • Predict the effect of a mutation which limits the production of pigment in hair
    5·1 answer
  • A gas with a volume of 500. mL at 75°C is heated to 225 °C. What is the new volume of the gas?
    13·1 answer
  • The valence electrons occur in what part of the atom?
    10·2 answers
  • Who’s is a difference between the focus of a nuclear engineer and the job of a nuclear scientist
    15·1 answer
  • Formation of magnesium chloride​
    10·1 answer
  • How many Zn atoms are there in 4.65 moles of Zn?
    6·1 answer
  • Please help me with this honestly I'm clueless It's 7th science work......please help
    14·2 answers
  • External Failure Costs Include The Following Costs Except__________ Costs.A Product-Returnb Lost Salesc Price-Downgradingd Warra
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!