MISSED THIS? Watch KCV: Cell Potential and Concentration; Read Section 20.6. You can click on the Review link to access the section in your e Text. A Cu/Cu²+ concentration cell has a voltage of 0.21 V at 25 °C. The concentration of Cu²+ in one of the half-cells is 1.6 × 10-³ M. ▼ Part A What is the concentration of Cu²+ in the other half-cell? (Assume the concentration in the unknown cell to be the lower of the two concentrations.) Express the molarity to two significant figures. ▸ View Available Hint(s) [Cu²+] = 197| ΑΣΦ ? M Review | Constants | Peric

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22. The diagram below represents a voltaic cell. What is the balanced electrochemical reaction represented by this cell? Al(s))Al³*(1.0 M)||Cu²*(1.0 M)|Cu(s) a. Al(s) + Cu (ag)→ Al** (aq) + Cu(s) b. 2H,0) + 3A1*(aq) + 2Cu(s) → 2A1(s) + 3Cu?*(aq) + 4H*(aq) + 0,(g) c. 2Al(s) + 3Cu?*(aq) → 3AI** (aq) + 2Cu(s) d. Al*(aq) + Cu(s) → Al(s) + Cu?*(aq) e. 3A* (aq) + 2Cu(s) → 2Al(s) + 3Cu²*(aq)

Calculate Ecel (volts) for the galvanic cell containing the reaction shown below where the concentration of the ion at the anode is 0.793 M and the concentration of the ion at the cathode is 1.90 M. Use the standard reduction potentials from Appendix L in our textbook. Np + Lu³* » Lu + Np3*

A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of gold in a 1.0 M gold(III) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Refer to the list of standard reduction potentials. E° V 'cell * TOOLS х10

True or false, The electrode in a half-cell is always part of the half-reaction?

Calculate Ecell (volts) for the galvanic cell containing the reaction shown below where the concentration of the ion at the anode is 0.400 M and the concentration of the ion at the cathode is 1.86 M.

A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential Exed half-reaction 2 H2O(1)+2e → H2(g)+2OH (aq) Ε red -0.83 V 2+ Zn(aq)+2e →>> Zn(s) E = = -0.763 V 'red Answer the following questions about this cell.