Problems involving Cell Potentials the Nernst Equation Observe this cell at room temperature: Co(s) + Fe2+(aq.) (1.94M) ⟶ Co2+(aq.) (0.15M) + Fe (s) Is the process spontaneous? E∘Co2+/Co= −0.28 V , E∘Fe2+/Fe = −0.447 V

Q: The free energy change for the following reaction at 25 °C, when [Hg²*] = 1.17 M and [Sn²+] =…

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Q: Consider the following reaction at 298K.  2H+ (aq) + Hg (1) --> H2 (g) + Hg2+ (aq)   Which of the…

A: Given the following reaction: 2H+aq+Hgl→H2g +Hg2+aq Standard reduction potential from literature:…

Q: A certain metal M forms a soluble nitrate salt M(NO. t M(NO3)2. Suppose the left half cell of a…

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Q: The free energy change for the following reaction at 25 °C, when [Cu2+] = 1.11 M and [Cr3+] =…

A: The considered reaction is, 3 Cu2++ 2 Cr(s) →3 Cu (s) + 2 Cr3+

Q: Calculate E, and AG for the following cell reactions at 25 °C. [Mg 2+]= 0.032 M, [Sn 2+]=0.018 M…

A: Answer :- E = 2.22 V , ∆G = -429 kJmol…

Q: The free energy change for the following reaction at 25 °C, when [Zn²*] = 6.08×10³ M and [Cu²*] =…

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Q: For the galvanic (voltaic) cell Fe(s) + Mn²⁺(aq) ⟶ Fe²⁺(aq) + Mn(s) (E° = 0.77 V at 25°C), what is…

A: The reaction given is Fe(s) + Mn²⁺(aq) ⟶ Fe²⁺(aq) + Mn(s)  Since Fe is converting to Fe2+ by losing…

Q: Determine the value of K at 25 °C for the reaction 2H20 + 2CI25 4H + 4CI + O2 E(Volta) Hall-Cell…

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Q: Given the following data: Cathode= AuNO3 (0.01 M)  Anode: Hydrogen (1.01 M) In the attached…

A: The Nernst equation provides a relation between the cell potential of an electrochemical cell, the…

Q: The free energy change for the following reaction at 25 °C, when [Hg2+] = 1.14 M and [Co2+] =…

A: Answer is given has followed

Q: Direct methanol fuel cells (DMFCS) have shown some promise as a viable option for providing "green"…

A: The given reaction is represented as follows:

Q: Comment on the sign of Δ S system for the following reaction.Fe(s) + Z n 2+ (aq) → F e 2+ (aq) +…

A: Entropy of a chemical reaction is predicted by the randomness taking place in the system. Entropy of…

Q: Consider the following reaction at 298K. 2 H* (aq) + Zn (s) H2 (g) + Zn²* (aq) Which of the…

A: The given reaction is, 2H+ (aq) + Zn (s) ----->H2(g) + Zn2+ (aq) Two half reactions for the given…

Q: The free energy change for the following reaction at 25 °C, when [Co2+] = 3.37×10-3 M and [Cu2+]…

A: The "standard potential" of any cell is computed by using "Nernst equation". The +ve value for…

Q: ΔGo Eo K a 24kJ     b   0.120V   c     0.114 Consider a cell reaction at 25oC where n=3. Fill in the…

A: The relation between standard Gibbs free energy and standard cell potential for a reaction is as…

Q: 5.Calculate ΔG° for the following balanced redox reaction.             Pb2+(aq) + Cu(s) → Pb(s) +…

A: The Gibbs free energy (or Gibbs energy) is a thermodynamic potential that can be used to calculate…

Q: Consider the following cell reaction- Co(s) + Fe2+ (aq. 11.94M) => Co2+(aq 10.15M) + Fe(s) Eo…

A: The net cell reaction :  Co(s) + Fe2+(aq, 11.94 M) ---> Co2+(aq,10.15 M) + Fe(s)  The standard…

Q: The free energy change for the following reaction at 25 °C, when [Zn2+] = 6.70×10-3 M and [Cr3+] =…

A: Given, Reaction :  3Zn2++ 2Cr(s)→3Zn(s) + 2Cr3+ ∆G = 26.2 kJ

Q: The free energy change for the following reaction at 25 °C, when [Cu2+] = 1.19 M and [Cr3+] =…

A: The cell reaction given is, => 3 Cu2+ (aq) + 2 Cr (s) ↔ 2 Cr3+ (aq) + 3 Cu (s) Given: [Cu2+ ] =…

Q: 8. The standard electrode potentials are: 9°(Sn²*/Sn) = -0.137 5 V, q®(Fe*"/Fe") = 0.771 V, qº…

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Q: What is the calculated value of the cell potential at 298 K for an electrochemical cell with the…

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Q: The following reaction is non-spontaneous as written when the components are in their standard…

A: Given: Co(s) + Fe2+(aq) ----> Co2+(aq) + Fe(s) Eocell = - 0.16 V

Q: 8. The standard electrode potentials are: 9 (Sn"/Sn) =-0.137 5 V, q°(Fe*/Fe") = 0.771 V, g°…

A: Correct answers are (1), (2) , (4) and (5). Cell potential should be positive for spontaneous cell…

Q: The free energy change for the following reaction at 25 °C, when [Cu²']= 2.55×10° M and [Fe°"]= 1.15…

A: Given equation:

Q: What is the equilibrium constant (K) at 25°C for the following cell reaction? Co(s) +Ni2+→Ni(s)+…

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Q: Calculate the standard emf for the following reaction at 298 K. Cd(s) + 2 Co3+(aq) -- Cd2+(aq) + 2…

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Q: What is the calculated value of the cell potential at 298 K for an electrochemical cell with the…

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Q: What is the calculated value of the cell potential at 298 K for an electrochemical cell with the…

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Q: What is the equilibrium constant (K) and standard Gibbs energy (ΔG°) at 25°C for the following cell…

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Q: Direct methanol fuel cells (DMFCS) have shown some promise as a viable option for providing "green"…

A:

Q: The free energy change for the following reaction at 25 °C, when [Hg2+] = 1.19 M and [Zn²+] =…

A: Answer: Relation between Gibbs free energy change and cell potential is shown below: ∆G=-nFEcell…

Q: Consider a cell reaction at 25oC where n=3. Fill in the following table. ∆G o E o K a. 24kJ ? ? b. ?…

A: The relation between standard Gibbs free energy and standard cell potential is shown below,…

Q: Consider the following reaction at 298K. Pb2+ (aq) + 2 Cu+ (aq) → Pb (s) + 2 Cu²+ (aq) Which of the…

A: We have to predict the correct statement.

Q: The free energy change for the following reaction at 25 °C, when [H*] = 3.34x103 M and [Hg2*] = 1.15…

A: Given :

Q: A certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic…

A: In the given Galvanic cell,  the electrode is the same in both the half-cells which is the metal, M.…

Q: Calculate E° for each of the following reactions, and tell which are spontaneous under…

A: Given Reaction; a) 2Fe2+(aq) + Pb2+(aq) →2Fe3+(aq) + Pb(s)       oxidation (anode) : Fe2+ →Fe3+ + e-…

Q: a. Calculate the Gibbs free energy (kJ/mol) for a 6-electron redox reaction if its Eell D.25 V. b.…

A: a) Since the relationship between the Gibbs free energy change and E0cell is given by  ΔG0 =…

Q: The free energy change for the following reaction at 25 °C, when [Fe²+] = 1.18 M and [Cr³+] =…

A: an electrochemical cell reaction is an example of redox process

Q: For the galvanic (voltaic) cell Fe(s) + Mn²⁺(aq) ⟶ Fe²⁺(aq) + Mn(s) (E° = 0.77 V at 25°C), what is…

A: We have the given E° cell as 0.77 V Ecell given as 0.78 V All performed at 25°C or 298K We have Mn+2…

Q: Given the half-reactions: Pb** + 2e- → Pb2*g°d =+1.210v Fe3+ + e → Fe* = +0.771 v red = +0.771 V %3D…

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Q: Consider the following reaction at 298K. Cd2+ (aq) + 2 Fe2+ (aq) Cd (s) + 2 Fe3+ (aq) Which of the…

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Q: Cassandra builds a galvanic cell using a zinc electrode immersed in an aqueous Zn(NO3)2 solution and…

A: Given,  zinc electrode immersed in an aqueous Zn(NO3)2 solution and an copper electrode immersed in…

Q: Saquon builds a galvanic cell using a zinc electrode immersed in an aqueous Zn(NO3)2 solution and a…

A: The anode , oxidation takes place. So to check which species is produced at anode , we first check…

Q: A certain metal M forms a soluble nitrate salt M(NO3)2. Suppose the left half cell of a galvanic…

A:

Q: The free energy change for the following reaction at 25 °C, when [Zn²*]= 2.66×10³ M and [Cr³*] =…

A: The balanced reaction taking place is given as, Given : ΔG  28.3 KJ From the above reaction we can…

Q: Determine the value of Ecell (25°C) for the following galvanic cell: Q (s)  ∣  Q2+(aq, 1.5 M)  ‖…

A: The cell given is, => Q (s) | Q2+ (aq, 1.5 M) || Z+ (aq, 0.088 M) | Z (s) The half reactions…

Q: Problems involving Cell Potentials the Nernst Equation Observe this cell at room temperature: Co(s)…

A: There is two ways to identify the process is spontaneous or not. One way is calculating Gibbs free…

Q: (a) What is the value of E° for the following reaction? Zn2*(aq) + Ni(s) → Zn(s) + Ni2*(aq) (b) Is…

A: We can determine the standard cell potential of any cell from the following formula : E 0 cell  = E…

Q: The free energy change for the following reaction at 25 °C, when [Cu2+] = 2.57x10-³ M and [I₂] =…

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Q: Determine E, AG, and K for the overall reaction from the balanced half-reactions and their standard…

A: Given-> 2Co3+ + H3AsO3 +H2O <-------> 2Co2+ + H3AsO4 +2H+ Co3+ + e- ------> Co2+.  E° =…

Batteries

A battery is simply an electrochemical cell or group of cells that generate electric current. Batteries are the devices that generate current using redox reactions. These reactions proceed by the transfer of electrons. An ideal battery or cell should produce a constant voltage. A battery should actually be light in weight.