Ask Question
ChemistryChemistry
20 June, 00:38

Using standard electrode potentials calculate δg∘rxn and use its value to estimate the equilibrium constant for each of the reactions at 25 ∘c.

+4
Answers (1)
  1. 20 June, 03:51
    0
    The value of K for the equation Pb2 + (aq) + Mg (s) - >Pb (s) + Mg2 + (aq) is K = 2.35 X10^75 The value of k for the equation Br2 (l) + 2Cl - (aq) - >2Br - (aq) + Cl2 (g) is

    K = 1.26 X10^-10

    The value of k for the equation MnO2 (s) + 4H + (aq) + Cu (s) - > Mn2 + (aq) + 2H2O (l) + Cu2 + (aq) Eo is K = 1.17 X10^30

    Explanation:

    We have the formula,

    By the Nernst equation:

    E = Eo - (0.0592/n) (log Q)

    Put E=0which at equilibrium becomes

    0 = Eo - (0.0592/n) (log K)

    which re-write the equation as

    log K = Eo / (0.0592/n)

    1. Pb2 + (aq) + Mg (s) - >Pb (s) + Mg2 + (aq)

    Finding the value of Eo we get,

    Pb2 + (aq) - -> Pb (s) Eo = - 0.125

    Mg (s) - > Mg2 + (aq) Eo = + 2.356

    Pb2 + (aq) + Mg (s) - >Pb (s) + Mg2 + (aq) Eo = 2.231

    Subsitute in this formula we get

    log K = Eo / (0.0592/n)

    log K = 2.231 / (0.0592/2)

    log K = 75.37

    K = 2.35 X10^75

    The value of K for the equation Pb2 + (aq) + Mg (s) - >Pb (s) + Mg2 + (aq) is K = 2.35 X10^75

    2. Br2 (l) + 2Cl - (aq) - >2Br - (aq) + Cl2 (g) Eo = - 0.293

    Similarly, for the other equation follow the same procedure

    The equation is written in the form of non-spontaneous

    2Cl - (aq) - > Cl2 Eo = - 1.358

    Br2 (l) - -> 2Br - (aq Eo = 1.065

    Br2 (l) + 2Cl - (aq) - >2Br - (aq) + Cl2 (g) Eo = - 0.293

    log K = - 0.293 / (0.0592/2)

    log K = - 9.90

    K = 1.26 X10^-10

    The value of k for the equation Br2 (l) + 2Cl - (aq) - >2Br - (aq) + Cl2 (g) is

    K = 1.26 X10^-10

    3. MnO2 (s) + 4H + (aq) + Cu (s) - > Mn2 + (aq) + 2H2O (l) + Cu2 + (aq)

    Similarly, for the other equation follow the same procedure

    The equation is written in the form of non-spontaneous

    MnO2 (s) - > Mn2 + Eo = 1.23

    Cu (s) - > Cu2 + Eo = - 0.340

    MnO2 (s) + 4H + (aq) + Cu (s) - > Mn2 + (aq) + 2H2O (l) + Cu2 + (aq) Eo = 0.89

    log K = 0.89 / (0.0592/2)

    log K = 30.067

    K = 1.17 X10^30

    The value of k for the equation MnO2 (s) + 4H + (aq) + Cu (s) - > Mn2 + (aq) + 2H2O (l) + Cu2 + (aq) Eo is K = 1.17 X10^30
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Using standard electrode potentials calculate δg∘rxn and use its value to estimate the equilibrium constant for each of the reactions at 25 ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
What is the number of moles of gas contained in a 3 L vessel at 300 K with a pressure of 1.50 atm? (Given: R = 0.08205 L∙atm/mol∙K) 4.5 mol 0.18 mol 24.63 mol 5.47 mol 1.8 mol
Answers (1)
If 10g of c4h10 were burned in the presence of 10. g grams of 02, how many grams of co2, are produced
Answers (1)
When reaction 1) and 2) below are added together, the result is reaction 3).1) h2o (l) + hno2 (aq) ⇌ h3o + (aq) + no2 - (aq) k1 = 4.50 * 10-42) h3o + (aq) + oh - (aq) ⇌ 2 h2o (l) k2 = 1.
Answers (1)
How much dioxin is present in 3.0 L of this water? Assume a density of 1.00 g/mL. Express the answer in grams using two significant figures.
Answers (1)
How many valence electrons are in a silicon atom?
Answers (1)
New Questions in Chemistry
Describe your observations of the original solutions. Describe your observations when the silver nitrate was added to the sodium chloride solution.
Answers (1)
A gas occupies 18.5L at stp. what volume will it occupy at 735 torr and 57°c?
Answers (1)
When two elements form two different compounds, the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers.
Answers (1)
Which best identifies why the rusting of an iron nail in the presence of water and oxygen is in oxidation-reduction reaction
Answers (1)
In the laboratory hydrogen gas is usually made by the following reaction:Zn (s) + 2HCl (aq) = H2 (g) + ZnCl2 (aq) How many liters of H2 gas, collected over water at an atmospheric pressure of 752 mmHg and a temperture of 21 Co, can made from 3.
Answers (1)
Home » Chemistry » Using standard electrode potentials calculate δg∘rxn and use its value to estimate the equilibrium constant for each of the reactions at 25 ∘c.
Sign Up Forgot Password?