Question

Consider the reaction Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 69 ∘C , where [Fe2+]= 3.20 M and [Mg2+]= 0.110 M .

Part A:What is the value for the reaction quotient, *Q*,
for the cell?

**Express your answer numerically.**

Part B:What is the value for the temperature, *T*, in
kelvins?

**Express your answer to three significant figures and
include the appropriate units.**

Part C:What is the value for *n*?

**Express your answer as an integer and include the
appropriate units (i.e. enter mol for moles).**

Part D:Calculate the standard cell potential for

Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)

**Express your answer to three significant figures and
include the appropriate units.**

**THANK YOU!!!**

Answer #1

part A ) Q = [Mg^{+2} ]
/[Fe^{+2} ] = 0.110/3.2 = 0.0343

part B ) T = 273.15 + 69 = 342.15 K

PART C) n = no of electrons = 2

part D ) Ecell = E^{o}cell -
2.303/2RTlogQ

= 2.37 + (-0.44) - 0.04log(0.0343 )

= 1.93 + 0.0585 = 1.988 Volt

Consider the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)
at 79 ∘C , where [Fe2+]= 3.30 M and [Mg2+]= 0.310
M .
Part A
What is the value for the reaction quotient, Q, for the
cell?
Part B
What is the value for the temperature, T, in
kelvins?
Express your answer to three significant figures and include the
appropriate units.
Part C
What is the value for n?
Express your answer as an integer and include the appropriate
units (i.e. enter mol for moles).
Part...

Consider the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)
at 65 ∘C , where [Fe2+]= 3.40 M and [Mg2+]= 0.110 M .
Part A
What is the value for the reaction quotient, Q, for the cell?
Part B
What is the value for the temperature, T, in
kelvins?
Part C
What is the value for n?
Part D
Calculate the standard cell potential for
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)

Consider the reaction
Mg(s)+Fe2+(aq)?Mg2+(aq)+Fe(s) at
53?C , where [Fe2+]= 3.80M
and [Mg2+]= 0.310M .
a)What is the value for
the reaction quotient, Q, for the cell?
b)What is the value for the temperature, T, in
kelvins?
c)What is the value for
n?
Express your answer as an integer and include the appropriate
units (i.e. enter mol for moles).

What is the cell potential for the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)
at 75 ∘C when [Fe2+]= 3.10 M and [Mg2+]= 0.110
M .
Express your answer to three significant figures and include the
appropriate units.

Consider the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 69 ∘C , where [Fe2+]= 3.00
M and [Mg2+]= 0.210 M .
Part A
What is the value for the reaction quotient, Q, for the
cell?
Part B
What is the value for the temperature, T, in
kelvins?
Part C
What is the value for n?
Part D
Calculate the standard cell potential for
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)
Part E
For the reaction
2Co3+(aq)+2Cl−(aq)→2Co2+(aq)+Cl2(g). E∘=0.483
V
what is the cell potential at 25 ∘C if the concentrations are
[Co3+]=...

Consider the reaction Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 61 ∘C ,
where [Fe2+]= 2.80 M and [Mg2+]= 0.210 M .
A. What is the value for the reaction quotient, Q, for the
cell?
B. What is the value for the temperature, T, in kelvins? What is
the value for n?
C. Calculate the cell potential.

What is the cell potential for the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 47 ∘C when [Fe2+]= 3.10 M and
[Mg2+]= 0.110 MM . Express the potential numerically in volts.

What is the cell potential for the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 79 ∘C when [Fe2+]= 3.20 M and
[Mg2+]= 0.310 M .

What is the cell potential for the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s)
at 85 ∘C when [Fe2+]= 3.50 M and [Mg2+]= 0.110
M .

What is the cell potential for the reaction
Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 83 ∘C when [Fe2+]= 3.30 M and
[Mg2+]= 0.310 M .

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