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
IrinaVladis [17]
2 years ago
14

For the galvanic (voltaic) cell fe(s) + mn²⁺(aq) ⟶ fe²⁺(aq) + mn(s) (e° = 0.77 v at 25°c), what is [fe²⁺] if [mn²⁺] = 0.050 m an

d e = 0.78 v? assume t is 298 k
SAT
1 answer:
Nuetrik [128]2 years ago
6 0

The concentration of Iron in the galvanic (voltaic) cell Fe(s) + Mn²⁺(aq) ⟶ Fe²⁺(aq) + Mn(s) is 0.02297 M.

<h3>What is the Nernst Equation?</h3>

The Nernst equation enables us to identify the cell potential(voltage) in presence of non-standard conditions in a galvanic cell. It can be expressed by using the formula:

\mathbf{E_{cell} = E_o - \dfrac{0.059}{n} \times log \dfrac{[Fe^+]}{[Mn^{2+}]}}

where;

  • n = Number of electrons = 2
  • \mathbf{E_o} = Initial voltage = 0.77 V
  • \mathbf{E_{cell}} = Cell voltage = 0.78 V
  • \mathbf{[Mn^{2+}]} = Manganese concentration = 0.050 M

Replacing the values into the above equation, we have:

\mathbf{0.78 = 0.77 - \dfrac{0.059}{2} \times log \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{0.78 -0.77= -0.0296\times log \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{log^{-1} (-0.3378) = \dfrac{[Fe^{2+}]}{[0.050]}}

\mathbf{Fe^{2+} = (0.4594\times 0.050 )\ M}

\mathbf{Fe^{2+} =0.02297 \ M }

Learn more about using the Nernst equation here:

brainly.com/question/24258023

You might be interested in
Which is a factor of x2 8x – 48? (x – 6) (x 4) (x – 16) (x 12)
Olenka [21]
Just you know what that is but if I’m clearly about that question then I don’t know what to tell you and beside I don’t know the answer too
7 0
3 years ago
What type of web page is classified as flat or stationary
kipiarov [429]

Answer:

<h3>A static web page</h3>

Explanation:

(sometimes called a flat page or a stationary page) is a web page that is delivered to the user's web browser exactly as stored, in contrast to dynamic web pages which are generated by a web application.

8 0
3 years ago
Read 2 more answers
Which phrase from the passage is an example of indirect characterization? a bit of a perfectionist anxious to learn new things c
Leno4ka [110]

Answer:

d lazily flipped through the pages

Explanation:

taking text srry if I'm wrong

4 0
3 years ago
I will give anybody 75 points if they answer this question?
gladu [14]

Answeri do not know

Explanation:

6 0
3 years ago
Read 2 more answers
If a restaurant reviewer wanted to find out how good a restaurant really was, would it be better for them to be anonymous?
Soloha48 [4]
Yes because the restaurant owners wouldn’t know who he / she was so they would treat the reviewer just like any other customer.
5 0
3 years ago
Other questions:
  • A recent study concluded that about 90% of all large predatory fish such as tuna have disappeared from the world’s oceans in the
    5·2 answers
  • Passage
    13·1 answer
  • How many reports for colleges does the ACT refrigeration fee cover
    14·2 answers
  • Which of these is the most likely effect of an increase in the cost of production?
    15·2 answers
  • Which of the following would most undermine speaker credibility?
    12·2 answers
  • For a child categorized as having a slow to warm temperament as identified by Thomas and Chess, caregivers should...
    12·1 answer
  • jim (m = 100 kg) rollerblades on a smooth horizontal floor at a constant speed of 2.0 m/s for a distance of 5.0 m in 5.0 s. what
    7·1 answer
  • Task 1: Preparing an Income Statement
    13·1 answer
  • All of the following are true statements about meiosis in mammals except:.
    11·2 answers
  • When 1. 57 mol o2 reacts with h2 to form h2o , how many moles of h2 are consumed in the process?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!