What is the emf of a cell consisting of a Pb2+ / Pb half-cell and a Pt / H+ / H2 half-cell if [Pb2+] = 0.99 M, [H+] = 0.073 M and PH2 = 1.0 atm?


What is the emf of a cell consisting of a Pb2+ / Pb half-cell and a...
What is the emf of a cell consisting of a Pb2+ / Pb half-cell and a Pt / H+ / H2 half-cell if [Pb2+] = 0.28 M, [H+] = 0.034 M and PH2 = 1.0 atm ?
What is the emf of a cell consisting of a Pb2+/Pb half-cell and a H+/H2 Half-cell if [Pb2+]=0.30M, [H+]=0.070M and PH2=1.5 atm.
Enter your answer in the provided box. What is the emf of a cell consisting of a Pb2+ / Pb half-cell and a Pt / H+ / H2 half-cell if [Pb2+] = 0.58 M, [H+] = 0.047 M and PH2 = 1.0 atm ? =_____V
Enter your answer in the provided box. What is the emf of a cell consisting of a Pb2+ / Pb half-cell and a Pt/H/H, half-cell if [Pb2+] = 0.99 M, [H] = 0.055 M and PH, = 1.0 atm ? 0.083
Enter your answer in the provided box. What is the emf of a cell consisting of a Pb^2+/Pb half-cell and a Pt/H^+/H_2 half-cell if [Pb^2+] = 0.29 M, [H^+] = 0.062 M and P_H_2 = 1.0 atm?
11.) Calculate the standard emf of a cell that uses the Mg/Mg2+ and Cu/Cu2+ half-cell reactions at 25 C. Write the equation for the cell reaction that occurs under standard-state conditions. 12.) Calculate the emf and then predict whether the following reaction would occur spontaneously in aqueous solutions at 25 C. Assume that the initial concentrations of dissolved species are all 1.0 M. Show calculations. a.) Care) + Cd2+ (aq) → Ca2+ + Cd() b.) Br2() + Sn(3) ► 2Br...
Please explain, thank you!
(4) Consider a cell at 298 K in which the reaction is Pb (s)+2H (aa-Pb2+ (ag) +H2 (g) (a) Cr ions are added to the Pb|Pb2+ half-cell to precipitate PbCh. The cell voltage is then measured to be +0.210 V. If [H]-1.0 M and the partial pressure of hydrogen is 1.0 atm, what is [Pb2*]? (answer: 1.57 x 103 M) (b) Calculate the Kp of PbCh if [Cl]-0.10 M in the PblPb2 half-cell. (answer: 1.57 x...
Please help me!! Answer is not 0.024..
Enter your answer in the provided box. What is the emf of a cell consisting of a Pb2+ / Pb half-cell and a Pt/" /H, half-cell if [Pb2+] = 0.57 M, [H] =0.012 M and PH, = 1.0 atm ? 0.024 V
A galvanic cell is made up of an Al-Al 3+ half-cell and a Pb-Pb2+ half cell. What is the standard EMF of this cell and what is G for the cell reaction at 25C?
A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 °C. The initial concentrations of Pb2+ and Cu2+ are 0.0500 M and 1.50 M, respectively. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V? Cu2+ (aq) + Pb(s) + Cu(s) + Pb2+ (aq) Hint: [Pb2+] + [Cu2+] = (1.5M + 0.05M) = 1.55 M total Hint: the standard potential of Pb2+ + 2e → Pb(s) is -0.130 and the...