8. Consider the galvanic cell at 25 °C: Ni(s) 1 NP (O .400 M) I 1...
Consider the following galvanic cell at 25°C. Pt | Cr2+ (0.33 M), Cr3+ (2.0 M) || Co2+ (0.18 M) I Co The overall reaction and equilibrium constant value are given below. 2 Cr2+(aq) + Co2+(aq) → 2 Cr3+ (aq) + Co(s) K = 2.79x107 Calculate the cell potential E for this galvanic cell and AG for the cell reaction at these conditions. E -2.5 ху AG Need Help? Read It
2reg Consider the following cell reaction: Ni(s) + 2 H'(? M) Nº*(1.00 M) + H2(g) 1.00 atm) If the cell potential at 298 K is 0.113 volts, what is the pH of the hydrogen electrode? 2reg pH- Submit Answer Retry Entire Group 9 more group attempts remaining
For the cell shown, the measured cell potential, ?cell, is −0.3629 V at 25 °C. Pt(s) | H2(g,0.899 atm) | H+(aq,? M) || Cd2+(aq,1.00 M) | Cd(s) The balanced reduction half-reactions for the cell, and their respective standard reduction potential values, ?o, are 2H+(aq)+2e−⟶H2(g)?o=0.00 V Cd2+(aq)+2e−⟶Cd(s)?o=−0.403 V Calculate the H+ concentration. [H+]=
Consider the following galvanic cell at 25 °C: Zn(s) | Zn2+(0.170 M) || Fe3+(1.40 M), Fe2+(0.230 M) | Pt(s) Calculate ℰ°cell. ℰ°cell = V Calculate ℰcell. ℰcell = V Calculate ℰcell after 86% of the Fe3+ has reacted. ℰcell = V
Calculate the cell potential for the galvanic cell in which the given reaction occurs at 25°C, given that [Ni2+] = 0.00100 M and [Au?+] = 0.781 M. Standard reduction potentials can be found in this table. 3 Ni(s) + 2 Au?+ (aq) =3 Ni2+ (aq) + 2 Au(s) E = V
Calculate the standard cell potential (∆Eo) for the
galvanic cell:
Ni (s) 1 Ni2+ (aq) II Ag+ (aq) 1 Ag (5) Given: E Half Reaction Ag+ (aq) +e- → Ag (s) Ni2+ (aq) + 2e- → Ni (s) 0.79 Volts -0.23 Volts
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Consider the following cell reaction: Fe(s) + 2 H+(?M —Fe2+(1.00 M)+H gX1.00 atm) If the cell potential at 298 K is 0.307 volts, what is the pH of the hydrogen electrode? pH= Consider the following cell reaction: Ni(s) + 2 H (?M) —+NI+(1.00 M)+H(E)1.00 atm) If the cell potential at 298 K is 0.104 volts, what is the pH of the hydrogen electrode? pH - 1.75 x Incorrect...
8. Consider the following electrochemical cell: Cd Cd? (0.20 M) // H (0.05 M), H2 (1 atm) /Pt Given the following standard reduction potentials: Reaction 2 H+ (aq) + 2 Cd + (aq) + 2e H2 (aq) Cd (s) Eº (volts) 0.00 -0.40 (a) Write the equation for the overall cell reaction. (b) Calculate E' for the overall reaction. (c) Calculate the equilibrium constant for the overall reaction. (d) Calculate the actual value of E for the cell at the...
What is the overall cell reaction for the galvanic cell given in shorthand below? Pt(s) i H2(g) | H+(aq) || Cl2(g) CI(aq) Pt(s) A. Pt(s) + H2(g) + CI+(aq) - Pt(s) + 2 H+(aq) + 2 C12(g) B. 2 H+(aq) + 2 C12(g) → 2 HCl(aq) CH2(g) + Cl2() - 2 H+(aq) + 2 CİH(aq) None of these is correct.
For the cell shown, the measured cell potential, Ecell, is -0.3711 V at 25 °C Pt(s) H2(g, 0.865 atm) | Ht (aq,? M) || Cd2+ (aq, 1.00 M) | Cd(s) The balanced reduction half-reactions for the cell, and their respective standard reduction potential values, E°, are 2 H"(aq) + 2е — H2(g) Eo = 0.00 V Cd2+(aq)2 e - Cd(s) Eo =-0.403 V Calculate the Ht concentration М