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
madam [21]
3 years ago
12

10 points) Given the following two half-reactions, write the overall reaction in the direction in which it is product-favored, a

nd calculate the standard cell potential.Pb2+ (aq) + 2 e–à Pb (s) Eº= –0.126 VFe3+ (aq) + e–à Fe2+ (s) Eº = +0.771 V
Chemistry
1 answer:
IceJOKER [234]3 years ago
7 0

Answer:

The over all reaction :

2Fe^{3+}(aq)+Pb(s)\rightarrow 2Fe^{2+}(s)+Pb^{2+}(aq)  

The standard cell potential of the reaction is 0,.897 Volts.

Explanation:

Reduction at cathode :

Fe^{3+}(aq)+e^-\rightarrow Fe^{2+}(s)..[1]  

E^o_{Fe^{3+}/Fe^{2+}}=0.771 V

Reduction potential of Fe^{3+} to Fe^{2+}=0.771 V

Oxidation at anode:

Pb(s)\rightarrow Pb^{2+}(aq)+2e^-.[2]

E^o_{Pb^{2+}/Pb}=-0.126 V

Reduction potential of Pb^{3+} to Pb=-0.126 V

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{red,cathode}-E^o_{red,anode}

Putting values in above equation, we get:

E^o_{cell}=E^o_{Fe^{3+}/Fe^{2+}}-E^o_{Pb^{2+}/Pb}

=0.771 V-(-0.126 )=0.897 V

The over all reaction : 2 × [1] + [2]

2Fe^{3+}(aq)+Pb(s)\rightarrow 2Fe^{2+}(s)+Pb^{2+}(aq)  

The standard cell potential of the reaction is 0,.897 Volts.

You might be interested in
The chemical properties of an atom are related to the arrangement of what
jolli1 [7]
Chemical properties of an atom are based upon the arrangement of valence electrons (electrons which can be gained, lost, or shared).
4 0
3 years ago
What salt is formed by the reaction of potassium hydroxide and hydrochloric acid?
Nina [5.8K]

Potassium hydroxide (KOH) is formed when Potassium forms ionic bonds with OH-ions while Potassium Oxide (K2O) is formed when potassium forms ionic bonds with the Oxide (O2-) ions. i.e. This reaction is a neutralization reaction and occurs when an acid (HCl) reacts with a base (KOH).

3 0
3 years ago
Read 2 more answers
For the following reaction, identify whether the compound in bold is behaving as an acid or a base.
harina [27]

Answer: acid

Explanation: it dissolves in water to produce hydronium ion as the only positive ion

3 0
3 years ago
In the following equation:
Luda [366]

Answer:

FeCl₃

Explanation:

                 4FeCl₃  +   3O₂     => 2Fe₂O₃+ 6Cl₂

Given =>  7moles     9moles

A simple way to determine which reagent is the limiting reactant is to convert all given data to moles then divide by the respective coefficients of the balanced equation. The smaller value will be the limiting reactant.

                 4FeCl₃     +   3O₂     => 2Fe₂O₃+ 6Cl₂

Given =>  7/4 = 1.75*     9/3 = 3

*Smaller value => FeCl₃ is limiting reactant.  

NOTE: However, when working problems, one must use original mole values given.

   

7 0
3 years ago
Given the following equation, what is the correct form of the conversion factor needed to convert the number of moles of O₂ to t
djverab [1.8K]

Answer : The correct option is (c) \frac{2\text{ mole of }Fe_2O_3}{3\text{ mole of }O_2}

Explanation :

The given balanced chemical reaction is,

4Fe(s)+3O_2(g)\rightarrow 2Fe_2O_3(s)

From the balanced chemical reaction, we conclude that

As, 3 moles of O_2 react to give 2 mole of Fe_2O_3

So, 1 mole of O_2 react to give \frac{2\text{ mole of }Fe_2O_3}{3\text{ mole of }O_2} moles of Fe_2O_3

Thus, the conversion factor needed to convert the number of moles of O_2 to the number of moles of Fe_2O_3 produced is \frac{2\text{ mole of }Fe_2O_3}{3\text{ mole of }O_2}

Hence, the correct option is (c) \frac{2\text{ mole of }Fe_2O_3}{3\text{ mole of }O_2}

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many liters of water are required to dissolve 1.00 g of barium chromate? express your answer in liters to three significant
    12·2 answers
  • How to reproduce with a dolphin?<br> and how long will it take for the dolphin baby to come out?
    7·1 answer
  • What do you notice about the density of the sinking objects?
    10·2 answers
  • The ability to put in a light bulb with greater ease is because the bottom half is what type of simple machine?
    5·1 answer
  • Which of processes of water cycle occur by releasing energy
    13·1 answer
  • What would happen to a population if there were a change in the environment where the population lived
    10·1 answer
  • What is the building block of matter :(?
    14·1 answer
  • What do you mean by hydrocarbons???<br><br><br>Good night​
    9·2 answers
  • What do you mean by chain reaction​
    13·1 answer
  • Define the following terms<br> a. crystallization<br> b. radical<br> c. mixture​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!