|H₂(1 atm) half-cell with unknown An electrochemical cell is constructed in which a La³+ (1.00 M) |La(s) half-cell is connected to an H₂O* (aq) H₂O* concentration. The measured cell voltage is 2.056 V, and the La3+ La half-cell is the anode. What is the pH in the H₂O*IH₂ half-cell? The standard reduction potential for the La³+ | La half-cell is -2.370 V. pH =

|H₂(1 atm) half-cell with unknown An electrochemical cell is constructed in which a La³+ (1.00 M) |La(s) half-cell is connected to an H₂O* (aq) H₂O* concentration. The measured cell voltage is 2.056 V, and the La3+ La half-cell is the anode. What is the pH in the H₂O*IH₂ half-cell? The standard reduction potential for the La³+ | La half-cell is -2.370 V. pH =

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25°C. Mg(s) ∣ Mg2+(aq, 1.74 M) || Cu2+(aq, 0.0053 M) ∣ Cu(s)
A voltaic cell consists of a Pb/Pb2+Pb/Pb2+ half-cell and a Cu/Cu2+Cu/Cu2+ half-cell at 25 °C°C. The initial concentrations of Pb2+Pb2+ and Cu2+Cu2+ are 0.0520 MM and 1.50 MM, respectively. What is the initial cell potential? What is the cell potential when the concentration of Cu2+Cu2+ has fallen to 0.220 MM? What is the concentration of Pb2+Pb2+ when the cell potential falls to 0.370 VV?
Write the net cell equation for the electrochemical cell. Phases are optional. Do not include the concentrations. Co(s)|Co #(aq, 0.0155 M) || Ag*(aq, 1.50 M)|Ag(s) net cell equation:
Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing indium and cadmium. In(s)||In3+(aq)‖‖Cd2+(aq)||Cd(s)In(s)⁢|In3+⁢(aq)‖Cd2+⁢(aq)|Cd(s) anode: cathode: net cell reaction:
2+ Consider an electrochemical cell made up of Cu Cu²+ and Ag | Agt half-cells. Part 1 of 2 Write the equation for the cell reaction that occurs under standard-state conditions. Be sure to include the physical state of each species in the reaction. Part 2 of 2 E £º =0 ロ→ロ V 2+ Calculate the standard emf of a cell that uses the Cu Cu²+ and Ag | Ag* half-cell reaction at 25 °C. Round your answer to 3 significant digits. Note: Reference the Standard reduction potentials at 25 °C table for additional information. X ปี x10 Ś X Ś
Given the following electrochemical cell, calculate the potential for the cell in which the concentration of Ag+ is 0.0765 M, the pH of the H* cell is 2.700, and the pressure for H₂ is held constant at 1 atm. The temperature is held constant at 55°C. Ag Ag+ H+ Standard reduction potentials: 2H+ +2e¯ → H₂ Eº = 0 V Ag+ le - H₂(g) → Ag Eº=0.800 V
A voltaic cell consists of an Al/Al3+ half-cell and a Fe2+/Fe3+ half-cell.  The standard reduction potential for Al3+ is −1.66V and for Fe3+ is 0.77 V. Calculate Ecell at 25 ºC when the concentration of [Al3+] = 9.51 x 10-4 M , [Fe3+]= 6.24 x 10-3 M, and [Fe2+]= 5.74 x 10-5 M
For the galvanic cell: Zn(s) + 2Tl+(aq)     2Tl(s) + Zn2+(aq) Eocell = 0.42 V The standard reduction potential for the half cell Zn2+(aq) + 2e–    Zn(s) is Eored = –0.76 V What is the standard reduction potential for Tl+(aq) + e–    Tl(s)   Eored = ? V a. +0.17 V b. –0.17 V c. –0.34 V d. +0.34 V
A voltaic cell is constructed with two Ag+-Ag electrodes, where the half-reaction is Ag+(aq) + e– → Ag(s)        E° = 0.80 V The concentrations of Ag+ ion in the two compartments are 0.023 M and 1.3 M. What is the cell potential at 25°C?. Explain
Using the standard reduction potentials here, calculate the standard potential for the following cell in V (make sure you don't round your answer): Cu(s)Cu2*(aq)l|Mn²*(aq),H*(aq)|MnO2(s)|Pt(s)
A cell that consists of a standard hydrogen half-cell and a Cu/Cu2+ half-cell has Eo = 0.34 V. If the cell contains 0.00178 M concentrations of HCl and CuSO4, what potential does it produce?
Predict reaction and calculate E°cell from standard reduction potentials. A voltaic cell is constructed from a standard AI3+|Al half cell (E°red = -1.660V) and a standard F2|F° half cell (E°red = 2.870V). What is the spontaneous reaction that takes place, and what is the standard cell potential? Spontaneous cell reaction:Write a balanced equation using the smallest integer coefficients possible. + Standard cell potential: V.