What is the overall cell potential for this redox reaction?

1 answer:

8 0

I hope this problem I will provide might help you solve your problem:

What is the overall cell potential for this redox reaction?

Ca2+ + 2Li = Ca + 2Li+
Ca2+ + 2e- = Ca -2.87 V
Li = Li+ + e- -3.05 V

ANSWER:

 Ecell = Eox + Ered

The oxidation half-cell reaction is Li = Li+ + e- ....
and the given voltage is IN FACT the voltage for the reduction reaction of lithium. Since we have an oxidation reaction, we must reverse the sign of the given voltage to get the voltage of the oxidation reaction. Hence, Eox = -Ered = -( -3.05 V) = + 3.05 V

The reduction half-cell reaction is Ca2+ + 2e- = Ca .... Ered = -2.87 V

So, Ecell = 3.05 V + (-2.87 V) = 0.18 V


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

You might be interested in

What is the formula mass for sodium chloride?

Zigmanuir [339]

Atomic mass of sodium is 22.9 g/mol
atomic mass of chloride is 35.45 g/mol
sodium chloride is 22.99 + 35.45= 58.44 g/mol

3 0

3 years ago

Which statement indicates that a substance may be an ionic compound?

lapo4ka [179]

If it has a metal and a nonmetal. Not sure if this helps, but I hope it does :)

3 0

4 years ago

What term describes a carbon atom that has four different groups bonded to it?

oee [108]

A carbon which is attached to four different atoms or group of atoms with different environment is called as Chiral Carbon or Asymmetric Carbon.

Non-superimposable:
 The mirror image (molecule) of chiral carbon cotaining compounds are Non.Superimposable on each other. They are called enantiomers of each other.

Polarized Light and Chiral Carbon:
When a polarized light is allowed to fall on either enantiomer of chiral compound, it is rotated other clockwise or anti-clockwise.

Examples:
Below are three axamples of compounds containing chiral carbon.

8 0

3 years ago

Arrange the following element, lithium, potassium, carbon and fluorine in increasing ionization energy

Juli2301 [7.4K]

Answer:

flourine(1681),carbon(1086),lithium(520) and potassium(419)

as we can see that the ionization energy of flourine is the highest than carbon than lithium and than potassium

Explanation:

i hope it will help you

4 0

3 years ago

Read 2 more answers

What is the total number of moles represented by 20 grams of CACO3

Nutka1998 [239]

Answer:

B. 0.2.

Explanation:

We can use the relation:

n = mass/molar mass

mass of CaCO₃ = 20 g, molar mass of CaCO₃ = 100.0869 g/mol.

∴ n = mass/molar mass = (20 g)/(100.0869 g/mol) = 0.1998 ≅ 0.2 mol.

So, the right choice is: B. 0.2.

8 0

3 years ago