Chemistry Chemistry Practice Problems Solutions Library

Cell Potential Solutions Library

Access 231 Cell Potential video and text solutions to help you complete your homework.

Browse Solutions

231 solutions

Cell Potential

Q. A galvanic cell is powered by the following redox reaction: Cl2(g) + Mn2+(aq) + 2 H2O(l) → 2 Cl-(aq) + MnO2(s) + 4 H+(aq). Answer the following que...

Solved • Jun 16, 2020

Cell Potential

Q. Classify each reaction as spontaneous or nonspontaneous.Drag the appropriate items to their respective bins.Ca(s) + 2K+(aq) → Ca2+(aq) + 2K(s)3K(s)...

Solved • Apr 29, 2020

Cell Potential

Q. Calculate the equilibrium constant, K, for the following reaction at 25 °C.Fe3+(aq) +   B(s) + 6H2O (l) -→  Fe(s) +   H3BO3(s) +   3H3O+(aq)The bal...

Solved • Apr 29, 2020

Cell Potential

Q. Given these standard reduction potentials at 25°C.1.Cr3+ + e- → Cr2+  E°1= -0.407V2.Cr2+ +2e- → Cr(s)  E°2 = -0.913Determine the standard reduction...

Solved • Apr 29, 2020

Cell Potential

Q. Consider the following equation for an electrochemical cell reaction.H2(s) + PbCI2(s) ⇌ Pb(s) + 2HCl(aq) Predict the immediate effect of the follow...

Solved • Apr 29, 2020

Cell Potential

Q. Complete this table relating the values of Ecell and ΔG to the Q/K ratioQ/KEcellΔG< 1 = 1> 1Drag these labels into table as appropriate: >...

Solved • Apr 28, 2020

Cell Potential

Q. Consider two cells, the first with Al and Ag electrodes, and the second with Zn and Ni electrodes, each in appropriate 1.00M solutions of their ion...

Solved • Apr 28, 2020

Cell Potential

Q. Calculate the standard potential, E°, for this reaction from its equilibrium constant at 298 K.X(s) + Y4+(aq) ⇌ X4+(aq) + Y(s) K = 3.90 x 105E° =?V

Solved • Apr 28, 2020

Cell Potential

Q. Write the overall balanced equation for the reaction:Mn(s)|Mn2+(aq) ∥ ClO2(g)|ClO−2(aq) | Pt(s)Then calculate  E°cell.

Solved • Apr 28, 2020

Cell Potential

Q. Calculate the standard potential, E°, for this reaction from its ΔG° value.X(s) + Y2+(aq) → X2+(aq) + Y(s) ΔG = 89.0 kJ

Solved • Apr 28, 2020

Cell Potential

Q. Using standard electrode potentials calculate ΔG° and use its value to estimate the equilibrium constant for each of the reactions at 25 °C.MnO2(s)...

Solved • Apr 27, 2020

Cell Potential

Q. Using standard electrode potentials calculate ΔG° and use its value to estimate the equilibrium constant for each of the reactions at 25 °C.Br2(l) ...

Solved • Apr 27, 2020

Cell Potential

Q. Using standard electrode potentials calculate ΔG° and use its value to estimate the equilibrium constant for each of the reactions at 25 °C.Pb2+(aq...

Solved • Apr 27, 2020

Cell Potential

Q. Given the following half-reactions and their respective standard reduction potentials 1.) Cu3+ + 2e- ---> Cu+....E1= 1.128V 2.) Cu2+ + e- ---&gt...

Solved • Apr 23, 2020

Cell Potential

Q. Calculate the cell potential for the following reaction as written at 25.00 C, given that [Cr2+ ] = 0.812 M and [Ni2+ ] = 0.0180 M. Standard reduct...

Solved • Apr 22, 2020

Cell Potential

Q. Calculate E°cell for each of the following balanced redox reactions.Part A: O2(g) + 2H2O(l) + 4Ag(s) → 4OH−(aq) + 4Ag+(aq)Part B: Br2(l) + 2I−(aq) ...

Solved • Apr 21, 2020

Cell Potential

Q. Which of the following reactions will occur spontaneously as written?a) 2Cr3+ (aq) + 3Sn2+ (aq) ? 3Sn4+ (aq) + 2Cr (s)b) 3Fe2+ (aq) + Cr3+ (aq) ? C...

Solved • Apr 13, 2020

Cell Potential

Q. Use tabulated half-cell potentials to calculate ΔG°rxn for each of the following reactions at 25 °C.Br2(l) + 2I−(aq) → 2Br−(aq) + I2(s) Express the...

Solved • Apr 9, 2020

Cell Potential

Q. Use tabulated half-cell potentials to calculate ΔG°rxn for each of the following reactions at 25 °C.O2(g) + 2H2O(l) + 2Cu(s) → 4OH−(aq) + 2Cu2+(aq)...

Solved • Apr 9, 2020

Cell Potential

Q. What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions?[H+] = 0.77 MPH2 = 1.4 atmT = 298 K

Solved • Mar 31, 2020

Cell Potential

Q. One process catalyzed by NADH dehydrogenase isNADH + H+ + ubiquinone ⇌ NAD+ + ubiquinolThe standard reduction potentials for the half-reactions are...

Solved • Mar 31, 2020

Cell Potential

Q. For the following electrochemical cell Co(s)|Co2+(aq, 0.0155 M)||Ag+(aq, 2.50 M)|Ag(s) write the net cell equation. Phases are optional. Do not inc...

Solved • Mar 31, 2020

Cell Potential

Q. Which metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe?a) Agb) Cu c) Mnd) Au

Solved • Mar 25, 2020

Cell Potential

Q. Compute the equilibrium constant for the spontaneous reaction between Cd2+(aq) and Zn(s). Express your answer using two significant figures.

Solved • Mar 25, 2020

Cell Potential

Q. In the concentration cell created using Ag/Ag+, what is the value of E?

Solved • Mar 25, 2020

Cell Potential

Q. For the following electrochemical cell        Co(s)|Co2+(aq, 0.0155 M)||Ag+(aq, 1.50 M)|Ag(s)write the net cell equation. Phases are optional. Do n...

Solved • Mar 20, 2020

Cell Potential

Q. Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written.  Assume standard conditions.3Fe2+(aq) + 2Cr(s) →...

Solved • Mar 17, 2020

Cell Potential

Q. For the following electrochemical cellCu(s) | Cu2+(aq,0.0155M) || Ag+(aq,1.50M | Ag(s)Write the net cell equation. Phases are optional.Calculate th...

Solved • Mar 17, 2020

Cell Potential

Q. Given that E°cell for the reaction is -0.04 VFe3+(aq) + 3e- → Fe(s)      ε° = -0.04 VCalculate the solubility product constant for FePO4(s) at 25 °...

Solved • Mar 16, 2020

Cell Potential

Q. Calculate the half-cell potential for the reaction: Fe3+(aq) + 3e- → Fe(s). Show all work and circle your final answer.

Solved • Mar 16, 2020

Cell Potential

Q. Consider a galvanic cell that uses the reaction4H3O+ (aq) + 4I- (aq) + O2 (g) → 2I2 (s) 6H2O (l).If Ecell is +0.74 V, calculate ΔG°f of I- (aq) at ...

Solved • Mar 16, 2020

Cell Potential

Q. Consider a galvanic cell that uses the reaction4H3O+ (aq) + 4I- (aq) + O2 (g) → 2I2 (s) 6H2O (l) Write the two half-cell reactions, and calculate t...

Solved • Mar 16, 2020

Cell Potential

Q. A chemist designs a galvanic cell that uses these two half-reactions:Half-reaction                                                                 ...

Solved • Mar 12, 2020

Cell Potential

Q. What is the E°cell for the cell represented by the combination of the following half-reactions?2Hg2+(aq) + 2e– ⇌ Hg22+(aq)               E° = 0.92 ...

Solved • Feb 18, 2020

Cell Potential

Q. Which of the following reactions will occur spontaneously as written?A) Sn4+ (aq) + Fe2+ (aq) → Sn2+ (aq) + Fe (s) B) 3 Fe (s) + 2 Cr3+ (aq) → 2 Cr...

Solved • Feb 6, 2020

Cell Potential

Q. An electrochemical cell (battery) consists of a Cu plate immersed in 100 mL of 0.055 M Cu2+ solution and a Zn plate immersed in 100 mL of 0.550 M Z...

Solved • Jan 6, 2020

Cell Potential

Q. The value of E°cell for Cr|Cr 3+||Hg 2 2+|Hg(l) is 1.78 V. Calculate ΔG° for this reaction at 25 . a. -1220 kJb. -1031 kJc. -872 kJd. -851 kJe. -62...

Solved • Dec 19, 2019

Cell Potential

Q. If an electrochemical cell, Rb | Rb +|| Li +| Li has a standard potential of +0.02 V, what is the standard reduction potential of the Rb half-cell ...

Solved • Dec 19, 2019

Cell Potential

Q. Using the standard reduction potentials, Pb 2+(aq) + 2e– => Pb(s), E° = –0.13 V Fe 2+(aq) + 2e– => Fe(s), E° = –0.44 V Zn 2+(aq) + 2e– => ...

Solved • Dec 19, 2019

Cell Potential

Q. The nickel­cadmium battery cell has a standard potential of +1.20 V. The cell reaction is2 NiO(OH)(s) + Cd(s) + 2 H2O(l) → 2 Ni(OH)2(s) + Cd(OH)2(s...

Solved • Dec 19, 2019

Cell Potential

Q. The standard potential for the following galvanic cell is +0.90 V:3 Cu2+(aq) + 2 Ga(s) ⇌ 3 Cu(s) + 2 Ga3+(aq)Given that the standard reduction pote...

Solved • Dec 19, 2019

Cell Potential

Q. The standard cell potential (E°cell) for the voltaic cell based on the reaction below is __________ V.Sn2+(aq) + 2Fe3+(aq) → 2Fe2+(aq) + Sn4+(aq)Ha...

Solved • Dec 19, 2019

Cell Potential

Q. Calculate E°(cell) for the reaction, 10 Fe3+(aq) + I2(aq) <=> 2 IO3-(aq) + 10 Fe2+(aq) given the reductionpotentials:Fe3+(aq) + e- <=> ...

Solved • Dec 19, 2019

Cell Potential

Q. A voltaic cell (same as a galvanic cell) is created from an Co/Co2+ half-cell (E°red = -0.28) and an Al/Al3+ half-cell (E°red = -1.66 V). Calculate...

Solved • Dec 19, 2019

Cell Potential

Q. Calculate E°(cell) for the reaction, 2 IO3-(aq) + 10 Fe2+(aq) <=> 10 Fe3+(aq) + I2(aq) given the reduction potentials:Fe3+(aq) + e- ⇌ Fe2+(aq...

Solved • Dec 18, 2019

Cell Potential

Q. Consider a voltaic cell based on the half-cells:Ag+(aq) + e- → Ag(s) E° = +0.80 VSn2+(aq) + 2 e- → Sn(s) E° = -0.14 VIdentify the cathode and give ...

Solved • Dec 18, 2019

Cell Potential

Q. The standard cell potential for a dry cell battery is 1.56 V. What is the standard free energy change (kJ) for this cell?

Solved • Dec 18, 2019

Cell Potential

Q. Calculate E° (cell) for the reaction, 10 Fe3+(aq) + I2(aq) <=> 2 IO3-(aq) + 10 Fe2+(aq) given the reduction potentials:Fe3+(aq) + e- <=&gt...

Solved • Dec 17, 2019

Cell Potential

Q. Consider a galvanic cell built on the following half-reactions with their standard reduction potentials shown. What is ΔG° at 25 °C for the reactio...

Solved • Dec 17, 2019

Cell Potential

Q. Calculate E°(cell) for the reaction, 10 Fe3+(aq) + I2(aq) <=>  2 IO3-(aq) + 10 Fe2+(aq) given the reduction potentials:Fe3+(aq) + e- <=&gt...

Solved • Dec 16, 2019

Cell Potential

Q. Consider a galvanic cell built on the following half-reactions with their standard reduction potentials shown. What is ∆G° at 25 °C for the reactio...

Solved • Dec 16, 2019

Cell Potential

Q. For the following electrochemical cellCu(s)|Cu2+(aq, 0.0155 M) || Ag+(aq, 2.50 M)|Ag(s)write the net cell equation. Phases are optional. Do not inc...

Solved • Aug 6, 2019

Cell Potential

Q. Given that E°cell = 3.20V for the reaction 2Na(in Hg) + Cl2(g) ⇌ 2Na+(aq) + 2Cl−(aq)What is E° for the reduction 2Na+(aq) + 2e−→ 2Na(in Hg)?

Solved • Aug 5, 2019

Cell Potential

Q. A chemist designs a galvanic cell that uses these two half-reactions:Write a balanced equation for the half-reaction that happens at the cathode. W...

Solved • Jul 9, 2019

Cell Potential

Q. Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions.

Solved • Jul 9, 2019

Cell Potential

Q. The standard potential for the reduction of AgSCN(s) is +0.09 V.AgSCN(s) + e-  →  Ag(s) + SCN- (aq).Using this value and the electrode potential fo...

Solved • Jan 3, 2019

Cell Potential

Q. For the reaction3 Ni2+(aq) + 2 Cr(OH)3(s) + 10 OH- (aq)  →  3 Ni(s) + 2 CrO42-(aq) + 8 H2O(l)   G = +87 kJ/molGiven the standard reduction potentia...

Solved • Jan 3, 2019

Cell Potential

Q. A voltaic cell based on the reaction 2 Eu2+(aq) + Ni2+(s)  →  2 Eu3+(aq) + Ni(s) generates Ecell = 0.07 V. Given the standard reduction potential o...

Solved • Jan 3, 2019

Cell Potential

Q. The Haber process is the principal industrial route for converting nitrogen into ammonia:N2 (g) + 3H2 (g)  →  2NH3 (g).Using the thermodynamic data...

Solved • Jan 3, 2019

Cell Potential

Q. A voltaic cell is based on Ag+(aq)/Ag(s) and Fe3+(aq)/Fe2+(aq) half-cells.What is the standard emf of the cell?

Solved • Jan 3, 2019

Cell Potential

Q. Using data from Appendix E in the textbook, calculate the equilibrium constant for the disproportionation of the copper(I) ion at room temperature:...

Solved • Jan 3, 2019

Cell Potential

Q. A voltaic cell utilizes the following reaction:2Fe3+(aq) + H2(g)  →  2Fe2+(aq) + 2H+(aq).What is the emf of this cell under standard conditions?

Solved • Jan 3, 2019

Cell Potential

Q. A voltaic cell utilizes the following reaction and operates at 298 K:3Ce4 +  (aq) + Cr(s)  →  3Ce3 +  (aq) + Cr3 +  (aq).What is the emf of this ce...

Solved • Jan 3, 2019

Cell Potential

Q. At 298 K a cell reaction has a standard emf of +0.18 V. The equilibrium constant for the cell reaction is 5.6 x 105.What is the value of n for the ...

Solved • Jan 3, 2019

Cell Potential

Q. A voltaic cell is based on the reactionSn(s) + I2 (s)  →  Sn2 +  (aq) + 2I- (aq).Under standard conditions, what is the maximum electrical work, in...

Solved • Jan 3, 2019

Cell Potential

Q. Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reaction...

Solved • Jan 3, 2019

Cell Potential

Q. Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reaction...

Solved • Jan 3, 2019

Cell Potential

Q. Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reaction...

Solved • Jan 3, 2019

Cell Potential

Q. Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reaction...

Solved • Jan 3, 2019

Cell Potential

Q. Using the standard reduction potentials listed in Appendix E in the textbook, calculate the equilibrium constant for each of the following reaction...

Solved • Jan 3, 2019

Cell Potential

Q. A cell has a standard emf of + 0.151 V at 298 K.What is the value of the equilibrium constant for the cell reaction if n = 3?

Solved • Jan 3, 2019

Cell Potential

Q. For the half-reaction Cl2(g) + 2e-  →  2Cl-(aq), what are the standard conditions for the reactant and product?

Solved • Jan 3, 2019

Cell Potential

Q. For each of the following reactions, write a balanced equation, calculate the standard emf, calculate ΔG°  at 298 K, and calculate the equilibrium ...

Solved • Jan 3, 2019

Cell Potential

Q. Using data in Appendix E in the textbook, calculate the standard emf for each of the following reactions.3Fe2+(aq)   →   Fe(s) + 2Fe3+(aq)

Solved • Jan 3, 2019

Cell Potential

Q. Using standard reduction potentials (Appendix E in the textbook), calculate the standard emf for each of the following reactions.Ni(s) + 2Ce4 +  (a...

Solved • Jan 3, 2019

Cell Potential

Q. Using standard reduction potentials (Appendix E in the textbook), calculate the standard emf for each of the following reactions.Fe(s) + 2Fe3 +  (a...

Solved • Jan 3, 2019

Cell Potential

Q. Using standard reduction potentials (Appendix E in the textbook), calculate the standard emf for each of the following reactions.2NO3-  (aq) + 8H+(...

Solved • Jan 3, 2019

Cell Potential

Q. The standard reduction potentials of the following half-reactions are given in Appendix E in the textbook:l Ag+ (aq) + e-  →  Ag(s)Cu2 +  (aq) + 2e...

Solved • Jan 3, 2019

Cell Potential

Q. Given the following half-reactions and associated standard reduction potentials:AuBr4-(aq) + 3e-  →  Au(s) + 4Br-(aq)Eredo= - 0.858VEu3+(aq) + e-  ...

Solved • Jan 3, 2019

Cell Potential

Q. A 1M solution of Cu ( NO3 )2 is placed in a beaker with a strip of Cu metal. A 1 M solution of SnSO4 is placed in a second beaker with a strip of S...

Solved • Jan 3, 2019

Cell Potential

Q. For a spontaneous reactionA(aq) + B(aq)  →  A-(aq) + B+(aq)answer the following questions:What is the sign of E°cell?

Solved • Jan 3, 2019

Cell Potential

Q. A voltaic cell that uses the reactionTl3 +  ( aq ) + 2 Cr2 +  ( aq )  →  Tl+ ( aq ) + 2Cr3 +  ( aq )has a measured standard cell potential of +1.19...

Solved • Jan 3, 2019

Cell Potential

Q. Which of the following redox reactions do you expect to occur spontaneously in the reverse direction? [Hint: The reactions are occurring under stan...

Solved • Jan 3, 2019

Cell Potential

Q. Consider the reaction: I2(s) + 2 Br–(aq) → 2 I–(aq) + Br2(l); ΔG˚ = 1.1 x 105 J. The calculation revealed that the reaction is not spontaneous. Bas...

Solved • Jan 3, 2019

Cell Potential

Q. Compute the equilibrium constant for the spontaneous reaction between Ni2+(aq) and Cd(s).

Solved • Jan 3, 2019

Cell Potential

Q. Using standard electrode potentials calculate ΔG˚rxn and use its value to estimate the equilibrium constant for each of the reactions at 25 ˚C^circ...

Solved • Jan 3, 2019

Cell Potential

Q. The saturated calomel electrode, abbreviated SCE, is often used as a reference electrode in making electrochemical measurements. The SCE is compose...

Solved • Dec 4, 2018

Cell Potential

Q. For the following half-reaction, ε° = —2.07 V:AlF63-(aq) + 3e - → Al(s) + 6F -(aq)Using data from the following table, calculate the equilibrium co...

Solved • Dec 4, 2018

Cell Potential

Q. Calculate Ksp for iron(II) sulfide given the following data:FeS(s) + 2e- → Fe(s) + S 2-(aq)      ε° = —1.01 VFe2+(aq) + 2e- →Fe(s)                 ...

Solved • Dec 4, 2018

Cell Potential

Q. A disproportionation reaction involves a substance that acts as both an oxidizing and a reducing agent, producing higher and lower oxidation states...

Solved • Dec 4, 2018

Cell Potential

Q. An electrochemical cell consists of a nickel metal electrode immersed in a solution with [Ni2+] = 1.0 M separated by a porous disk from an aluminum...

Solved • Dec 4, 2018

Cell Potential

Q. Consider the galvanic cell based on the following half-reaction:Au3+ + 3e- → Au           E° = 1.50 VTl + + e- → Tl                 E° = —0.34 Va. ...

Solved • Dec 4, 2018

Cell Potential

Q. Direct methanol fuel cells (DMFCs) have shown some promise as a viable option for providing “green” energy to small electrical devices. Calculate E...

Solved • Dec 3, 2018

Cell Potential

Q. The equation ΔG° = -nFE° also can be applied to half-reactions. Use standard reduction potentials to estimate ΔG°f for Fe2+(aq) and Fe3+(aq). (ΔG°f...

Solved • Dec 3, 2018

Cell Potential

Q. Exercise 46. Give the balanced cell equation and determine E° for the galvanic cells based on the following half-reactions. Standard reduction pote...

Solved • Dec 3, 2018

Cell Potential

Q. The amount of manganese in steel is determined by changing it to permanganate ion. The steel is first dissolved in nitric acid, producing Mn2+ ions...

Solved • Dec 3, 2018

Cell Potential

Q. Chlorine dioxide (ClO2), which is produced by the reaction 2NaClO2 (aq) + Cl2 (g) → 2ClO2 (g) + 2NaCl (aq)has been tested as a disinfectant for mun...

Solved • Dec 3, 2018

Cell Potential

Q. Calculate E° values for the following cells. Which reactions are spontaneous as written (under standard conditions)? Balance the equations that are...

Solved • Dec 3, 2018

Cell Potential

Q. Calculate E° values for the following cells. Which reactions are spontaneous as written (under standard conditions)? Balance the equations. Standar...

Solved • Dec 3, 2018

Cell Potential

Q. Calculate E° values for the following cells. Which reactions are spontaneous as written (under standard conditions)? Balance the equations. Standar...

Solved • Dec 3, 2018