9. Write a Nernst expression, at 25 °C, for the following half-reactions: (a) Zn?* (aq) + 2 e s Zn (s) (b) Fe* (aq) + e s Fe2* (aq) (c) 2 H* (aq) + 2 e- S H2 (g) (d) Cr2O2- (aq) + 6 e + 14 H* (aq) S 2 Cr* (aq) + 7 H2O (I)

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: The standard cell potential, begin mathsize 12px style E subscript c e l l end subscript superscript…

A: The standard cell potential, begin mathsize 12px style E subscript c e l l end subscript superscript…

Q: 3. In each of the following cells write the cell reaction, and designate which reac- tions are…

A: Spontaneity  explains  on the basis  of the sign of Gibbs free energy  change which  depends  upon…

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

A:

Q: The equilibrium constant K for the overall reaction that takes place in the cell Pt|Sn2+,…

A:

Q: The following half-reaction AlF63-(aq) + 3e- -->Al(s) + 6F-(aq)         °E = -2,07 V. Calculate…

A:

Q: Tell weather the following redox reactions is spontaneous or not. With explanations/solution A. Hg+…

A: Recall the given redox reaction,A. Hg  +  Pb2+  →  Hg2+  +  PbB. Al3+  +  Fe  →  Al  +  Fe2+We…

Q: 1 5 5) V,0, + Cas > СаО + V,S, - - - 6) Mn(NO,), + BeCl, > Be(NO,), + MnCl, -

A:

Q: free energy change

A:

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

A:

Q: Calculate the equilibrium condant of the f heaction at 25°C from the stonrdard cell potential Snl6)…

A: A numerical problem based on electrochemistry, which is to be accomplished.

Q: How many grams of silver can be plated onto an object in 9.87 minutes at 4.74 A of current ?…

A:

Q: For the reaction 2C03+ (aq) + 2CI- (aq)→2C0²+(aq) + Cl2 (g). E° =0.483 V what is the cell potential…

A: Cell potential is calculated using Nernst equation .

Q: Calculate AG° for the following reaction at 315 K. At equilibrium, [HAIOs] = 0.73 M and [10,] = 0.08…

A: Given- [H4IO6] = 0.73 M [IO4-] = 0.08 M T = 315 K   To find- ∆Go   Formula- ∆Go = -RTlnK

Q: For the following half reactions AlF63-(aq) + 3e- = Al(s)+6F-(aq)  e°=-2.07V Al3+(aq) + 3e- =…

A:

Q: Given the reaction Sn4+(aq) + 4e− → Sn(s). What is the value of ΔG° ?

A: In this question, we want to determine the value of ∆G° ( changed in Gibbs energy ) for given…

Q: 4) Explain the following: Discuss the differences between AG and AG°'; between the relative rates of…

A: Interpretation: We have to explain the followings.

Q: In a certain zinc-copper cell, Zn(s) + Cu2*(aq) –→ Zn?*(aq) + Cu(s) the ion concentrations are…

A:

Q: 1. AgCl with a Ksp of 1.6E-10 has a higher molar solubility than Ag2CrO4 with a Ksp of 2.0E-12. True…

A: Molar solubility is compared from expression of Ksp by dissociating compounds into ions.

Q: What is the standard cell potential for the following cell: Sn/Sn2+/ /Ag*/Ag ? Given: Sn2+ + 2e- E°…

A: Here, Sn/Sn^2+ couple acts as anode while Ag^+/Ag couple acts as cathode.  Given that : E°(Sn/Sn^2+)…

Q: What mass of gold can be plated onto an object in 9.18 minutes at 4.91 A of current ? Au^3^+…

A:

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: Predict whether the following reactions would occur spontaneously in aqueous solution at 25°C.…

A: Write the expressions to calculate the standard cell potential. ECell=Ecathode-Eanode Where ECell is…

Q: Half-Reaction Fe2+ + 2e → Fe Zn²+ + 2e → Zn Fe²+ (aq) + Zn(s) Fe(s) + Zn²+ (aq) Calculate the…

A: There are two half reactions. One occurs at anode and the other at cathode. The half reaction with…

Q: A current of 5.83 A is passed through a Fe(NO3)2 solution for 1.60 h. How much iron is plated out of…

A: According to Faraday's law of electrolysis, the amount of substance deposited on an electrode is…

Q: Consider the following half-reaction: Mno (aq) → MnO2(s) If it is balanced in a basic medium, which…

A: The oxidation state of the manganese in the reactants and in the products are as follows: MnO4- = +7…

Q: Cu2+ + Fe Cu + Fe²+ The reaction is assumed to be that (Cu2+) =(Fe2+) =1.0M and T = 298 K. As the…

A:

Q: Consider the following reaction at 298K. Ag" (aq) + Cu (aq) Ag (s) + Cu²+ (aq) - Which of the…

A: The half cell reactions are: Anode: Cu+(aq) →Cu2+(aq) + e-                            E° = 0.16…

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: From a consideration of the following two half reactions at 298 K. Pb2+(aq) + 2e- → Pb(s) -0.126 V…

A: Third option. C. 7.2*1010

Q: The standard Gibbs energy change for the following voltaic cell Cu(s) | Cu2+(aq) || Ag+(aq) | Ag (s)…

A:

Q: Calculate the ΔGO(in kJ/mol) for the following reaction at 25.0℃. Sn+2(aq)+Mn(s)→Sn(s)+Mn+2(aq)

A: Answer: ∆G° for the following reaction at 25.0°C is -200.527 kJ/mol

Q: The potential of the cell Cd(s) | Cdl2, Agl(s) | Ag(s) is 0.2860 V at 25°C. Calculate the mean ionic…

A: The equations at LHE and RHE can be represented as: LHE: Cd(s)→Cd2+(aq)+2e-…

Q: 11. Consider the following reaction and its AG-AGo at 25.00 °C. Wate eb. Calculate the equilibrium…

A:

Q: The free energy change for the following reaction at 25 °C, when [Ag*] = 1.12 M and [Ni2+] =…

A:

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: Q.4. Calculate the standard Gibbs free energy change, AG°, at 250C for the following reaction.…

A:

Q: In an electrochemistry experiment a student used an unknown metal that was known to undergo this…

A: Given ,  Half reaction at anode : M(s)→M3+(aq)+3e- H2 gas collected =2.44×10-3 mol So, half reaction…

Q: 4. Calculate AS°, AH°, AG°, and K for each reaction at 298 K. a. 2NO2(g) = 2NO(g) + 02(g)

A: A) 2 NO2 (g) ==> 2 NO(g) + O2 (g)

Q: 2. Consider the following reaction: HCO, (ag) = H*(aq) + CO?-(aq) at room temperature (298 K). a)…

A: ∆G = ∆G° + RT ln Q  here Q = reaction quotient   if ∆Grxn is negative then reaction is spontaneous…

Q: 5.) Given the half reactions Cu²"(aq) + 2e → Cu (s) E°red = 0.34 V Pb2 (aq) +2 e → Pb (s) E'red =…

A:

Q: I need help with this practice problem.Thank you!

A: According to the question, we have: Equation: Sn(s) + 2Cu2+(aq) ---> Sn2+(aq) + 2Cu+(aq)  E°cell…

Q: Chemistry 19.10.-Calculate the standard potential, „E°, for this reaction from its AG° value.…

A: Given, X(s) + Y4+(aq) → X4+(aq) + Y(s)  ∆Go = 31.0 KJ = 31000 J

Q: The following question refers to the following system:   3Ag(s) + NO3–(aq) + 4H+(aq) → 3Ag+(aq) +…

A: Given: Anode reaction: Ag → Ag+(aq) + 1e–        E° = –0.7990 V Cathode reaction:  NO3–(aq) +…

Q: he oxidation of NH, to NO3 in acid solution (pH = 5.600) is described by the following equation:…

A: Given:- The pH of the solution is 5.60 Eocell=-0.2710 V Eo  for half reaction =-1.50V. Find:= The…

Q: or the following redox reaction calculate the Ecell and K at 298 K. 2Na+(aq) + Ca(s)→2Na(s) +…

A: The redox reactions involve simultaneous oxidation and reduction reactions. The electron transfer…

Q: Consider the reaction Mg(s)+Fe2+(aq)→Mg2+(aq)+Fe(s) at 85∘C , where [Fe2+]=3.40 M and [Mg2+]=0.210…

A: · Reaction equation :   Mg(s) + Fe2+(aq) →            Mg2+(aq) + Fe(s)· Temperature = 85 °C· Fe2+ =…

Q: Balance the following reaction in basic solution. Ag(s) + Zn?+ (ag) → Ag,0(ag) + Zn(s) Fill in the…

A: The chemical equations should be balanced in accordance with the law of conservation of mass. This…

Q: Find K for the following reaction at at 25°C. E cell = -0.10 V Cd²+ (aq) + Fe(s) -----> Cd(s) + Fe²+…

A: We have to predict the K for the reaction.