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
Svetllana [295]
2 years ago
13

PLEASEEE HELPPPP....PLEASEEEE

Chemistry
2 answers:
julia-pushkina [17]2 years ago
5 0

Answer: Choice B is correct. \Delta G=-89kJ and E^0_c_e_l_l=+0.46V

Explanation: \Delta G stands for Gibbs free energy equation. A reaction is spontaneous if \Delta G is negative and the reaction non spontaneous if \Delta G is positive.

For a cell, \Delta G is calculated from the cell potential using the equation:

\Delta G=-nFE^0_c_e_l_l

where, n is the moles of electrons transferred in a balanced equation, F is the faraday constant and E^0_c_e_l_l is standard cell potential.

From the above equation, \Delta G could only be negative if E^0_c_e_l_l is positive as the equation has negative sign.

So, the only correct choice is the one for which E^0_c_e_l_l is positive and \Delta G is negative.

Hence. choice B is correct.

Kobotan [32]2 years ago
4 0
For a reaction to be spontaneous, ΔG has to be negative and E° cell is positive. 

the answer is B
You might be interested in
When work is done on an object, the amount of ________ it has changes.
arsen [322]
Hey there!

When work is done on an object, the amount of energy it has changes.

Hope this helps!

~Autumly
3 0
3 years ago
Which type of formula represents the simplest whole-number ratio of atoms of the elements in a compound?
sleet_krkn [62]
The empirical formula represents the simplest whole number shows the simplest whole number ratio of atoms in a compound.  An example of this is the empirical formula for glucose (C₆H₁₂O₆) is C₃H₆O₃.  

I hope this helps.  Let me know if anything is unclear.
5 0
2 years ago
What is the difference between a pure solvent and a solution? Do they have the same physical properties?
pychu [463]

Answer:

The physical properties of a solution are different from those of the pure solvent. ... Colligative properties are those physical properties of solutions of nonvolatile solutes that depend only on the number of particles present in a given amount of solution, not on the nature of those particles.

5 0
2 years ago
If 12.1 kilograms of al2o3(s), 60.4 kilograms of naoh(l), and 60.4 kilograms of hf(g) react completely, how many kilograms of cr
Fynjy0 [20]
Answer is: 7,826 kg of cryolite.
Chemical reaction: Al₂O₃ + 6NaOH + 12HF → 2Na₃AlF₆ + 9H₂<span>O.
m(</span>Al₂O₃) = 12,1 kg = 12100 g.
n(Al₂O₃) = m(Al₂O₃) ÷ M(Al₂O₃).
n(Al₂O₃) = 12100 g ÷ 101,96 g/mol = 111,86 mol; limiting reactant.
m(NaOH) = 60,4 kg = 60400 g.
n(NaOH) = 60400 g ÷ 40 g/mol.
n(NaOH) = 1510 mol.
m(HF) = 60,4 kg = 60400 g.
n(HF) = 60400 g ÷ 20 g/mol = 3020 mol.
From chemical reaction: n(Al₂O₃) : n(Na₃AlF₆) = 6 : 2.
n(Na₃AlF₆) = 2 ·111,86 mol ÷ 6 = 37,28 mol.
m(Na₃AlF₆) = 37,28 mol · 209,94 g/mol.
m(Na₃AlF₆) = 7826,56 g = 7,826 kg.
7 0
3 years ago
Which of he following compounds is always part of an aqueous solution
weqwewe [10]

Answer: Water because if we say aqueous it means it resembles water or related to water.

7 0
3 years ago
Other questions:
  • Determining Density and Using Density to Determine Volume or Mass
    11·1 answer
  • 8th grade science by what process does carbon dioxide enter the ocean
    10·2 answers
  • BRAINLIESTTTT ASAP!! PLEASE HELP ME :)
    12·2 answers
  • The process of asking questions is known as
    13·2 answers
  • What is the relationship between grams and cm³? ​
    12·1 answer
  • How does molarity and molality affect the concentration of a solution<br>explain.
    13·1 answer
  • Please I'm not really sure.
    7·2 answers
  • What happens more when cooking, chemical changes or physical changes?
    12·2 answers
  • Hurry I need the answer asap
    14·1 answer
  • What is the freezing point of an aqueous suger (C12H22O11) solution that boils at 110C°?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!