A)Give the reason why it is necessary to use hydrogen as a standard to define the standard potential of half-reactions. B) Calculation of the standard potential of the galvanic cell in which the reaction takes place Next : 2I-aq + Br2lI2s + 2Br- (aq) Will the reaction happen spontaneously?

Q: Calculate the cell potential of Cu-Fe galvanic cell at the following conditions: i) Standard…

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Q: The dichromate ion, Cr2O72-, in acidic solution is a common oxidizing agent for organic compounds.…

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Q: Why is it necessary to use the standard hydrogen half-cell as a reference when calculating standard…

A: Given statement is :  Why is it necessary to use the standard hydrogen half-cell as a reference when…

Q: Balance the following reaction. Calculate the cell potential and the Gibbs free energy of the…

A: The questions are based on the concept of redox reactions.   Redox Reaction  are those reactions in…

Q: The following half-reactions were combined to construct a new galvanic cell. What is the standard…

A: Given-> [AuBr4]-(aq) + 3e- --------> Au(s) + 4Br-(aq).   E°=0.854 V Au3+(aq) + 3e- ------->…

Q: NO3 + H* + Zn → Zn²+ + NO2 + H2O

A: Given skeletal equation is: NO3-+H+ +Zn →Zn2++NO2 +H2O Calculate its standard cell potential(Eo) and…

Q: Calculate the cell potential for the galvanic cell in which the reaction   Fe(s)+Au3+(aq)↽−−⇀…

A: Please find your solution below :

Q: Balance the following reaction. Calculate the cell potential and Gibbs free energy of this reaction…

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Q: Cl2 + Br → Ch + Br2

A: The questions are based on the concept of redox reactions.   Redox Reaction  are those reactions in…

Q: If the free energy of an electrochemical process is +12 kJ/mol and n=3, what is the standard cell…

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Q: Use the tabulated electrode potentials to calculate K for the oxidation of zinc by H+ (at 25 ∘C):…

A: The Nernst equation at 298 K is as follows,                                     E = Eo - 0.0592n…

Q: How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous…

A: The balanced chemical equation for the reduction of copper is: Thus, for the production of 1 mole…

Q: A galvanic cell with a voltage of 1.3 V utilises the reaction: Zn + Cu2+ →→ Cu + Zn2+, as a source…

A: Given: The cell voltage is 1.3 V. The amount of Cu and Zn used is 6.3 g and 11 g, respectively.

Q: A constant current flows for 3.75 h through an electrolytic cell containing aqueous AgNO3(aq).…

A: According to the first law of Faraday, the mass of a metal deposited on the anode during…

Q: Consider the following reaction at 298K. Hg2+ (aq) + Zn(s)→→→→→→ Hg({) + Zn²+ (aq) The standard…

A: The equation ∆G∘ = -nFE∘Cell can also be used to calculate the potential of half-cell by addition or…

Q: Given the reaction    4 Al(s) + 3O2(g) ===>  2Al2O3(s), write the half reactions and calculate…

A: The reaction given is, => 4 Al (s) + 3 O2 (g) --------> 2 Al2O3 (s)

Q: A certain half-reaction has a standard reduction potential E=-1.33 V. An engineer proposes using…

A: Answer: For an electrical cell its cell potential will always be: E°cell=E°cathode-E°anode   Given…

Q: For the following cell reaction, the standard cell potential is 1.34 V. To determine the cell…

A: The answer is n = 10. See solution below: Half cell reactions: Oxidation: 5 H2SO3 + 5 H20 => 5…

Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2+ Sn*(aq)…

A: Given cell reaction  Sn2+(aq) + Ba(s) ----> Sn(s) + Ba2+(aq) At Ba electrode oxidation taking…

Q: In a galvanic cell, a full redox reaction takes place, one half-reaction at each electrode. How is…

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Q: A galvanic cell consists of a Mg electrode in 1 M Mg(NO3)2 solution and a Ag electrode in 1 M AgNO3…

A: Given- Electrodes Mg  in 1 M Mg(NO3)2 solution Ag  in 1 M AgNO3 solution Temperature = 25 °C   To…

Q: For the standard cell potentials given here, determine the ΔG° for the cell in kJ.(a) 0.000 V, n =…

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Q: What

A: We will use nernest equation.

Q: Copper can be electroplated at the cathode of an electrolytic cell by the half-reaction: Cur"(aq) +…

A: Given, The mass of copper is 325 mg. The current is 5.6 A. The given reaction is,

Q: ulate the potential of the following cells: a galvanic cell consisting of a lead electrode on the…

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Q: For the reaction; 4H+   +  PbO2  + 2 Fe 2+ →  2 Fe 3+ + Pb2+  +  2 H2O, the standard electrode…

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Q: In a galvanic cell, a full redox reaction takes place, one half-reaction at each electrode. How is…

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Q: The dilute sulfuric acid solution is electrolyzed with platinum electrodes with a current of 1.25 A…

A: Volume of gases evolved can be calculated from the moles of gases evolved..

Q: The standard potential of the cell formed by combining the Cl2/Cl- (aq) half-cell with the standard…

A: In order to found the individual reduction potential of a half-cell, the need for standard electrode…

Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2+ 2+ Sn²+…

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Q: What is the EMF of a galvanic cell if the standard reduction potential of the reduction…

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Q: Tabulated thermodynamic data can be used to predict the standard potential of a cell even if it…

A: Given: The balanced equation of the reaction is given as, Standard Gibbs energy of the reaction =…

Q: Consider the following electrochemical cell notation with a cell potential of 0.300 V. Pt ∣Cr3+(aq,…

A: NOTE : There is a minor correction in the cell notation given. As per the rules, the specie which is…

Q: Balance the following reaction. Calculate the cell potential and Gibbs free energy of this reaction…

A: We have given that    the balanced chemical equation                    Cl2  + 2Br-  → Br2  + 2Cl-…

Q: A Zn Zn2 + Co 2+ Co  galvanic cell is constructed in which the standard cell potential is 0.48 V.…

A: Given: A galvanic cell :                    ZnZn2+Co2+Co                  E0cell = 0.48V = 0.48 JC-1…

Q: Calculation of the standard potential of the galvanic cell in which the reaction takes place Next :…

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Q: Draw a galvanic cell consisting of a chromium and cobalt electrode and calculate the standard cell…

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Q: Give the reason why it is necessary to use hydrogen as a standard to define the standard potential…

A: A standard electrode is an electrode used as a reference in electrochemical reactions and this…

Q: Balance the following reaction. Calculate the cell potential and the Gibbs free energy of the…

A:

Q: What mass of iron (III) sulfate is present in 100 cm3 of the solution used to measure the standard…

A: 39.9 g

Q: f the potential of a galvanic cell is +1.20 V, what is the Gibbs free-energy change when one mole of…

A: Given  potential of a galvanic cell is +1.20 V when one mole of electrons is transferred in the…

Q: a galvanic cell is constructed from a standard hydrogen electrode and from another hydrogen…

A: A numerical problem about galvanic cell constructed using two Hydrogen electrodes.

Q: Calculate the standard cell potential, and note whether the reaction is spontaneous under standard…

A: We have given that cell : Cu(s)│Cu2+(aq)║Au3+(aq)│Au(s)  To know whether the reaction is…

Q: In electroplating operation, the cell potential is sometimes 0V. Why is zero potential possible in…

A: Electroplating is the process of coating metal using an electric current. This is mainly for the…

Q: A particular galvanic cell has a standard cell potential of Eocell = 0.62 V. If the Eo of the…

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Q: At 298 K a cell reaction has a standard cell potential of+0.17 V. The equilibrium constant for the…

A: At 298 K a cell reaction has a standard cell potential of +0.17 V. The equilibrium constant for the…

Q: Balance the following reaction. Calculate the cell potential and Gibbs free energy of this reaction…

A: The balanced redox reaction can be written as: MnO4- + 8H+ + 5e-  →  Mn2+ + 4H2O (Reduction)5Ce3+  →…

Q: The oxidation of methanol, as described by the equation below, has a ΔG° value of -937.9 kJ/mol.…

A: Given Oxidation of Methanol 2 CH3OH (l) + 3 O2 (g) → 2 CO2 (g) + 4 H2O (l)∆Gcell° = -937.9 kJ/mol =…

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.