A galvanic (voltaic) cell consists of an electrode composed of nickel in a 1.0 M1.0 M nickel(II) ion solution and another electrode composed of copper in a 1.0 M1.0 M copper(I) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C.25 °C. Refer to the list of standard reduction potentials

I need to find standard cell potential, the non-standard cell potential, using [Au^+]= 0.0015M and [Fe^3+]= 0.033M.  I need to calculate Gibb's free energy and equilibrium constant, K.  Is the reaction spontaneous or nonspontaneous?  Are reactants or products favored at equilibrium under non-standard conditions?

A 10.00 g sample consisting of a mixture of sodium chloride and potassium sulfate is dissolved in water. This aqueous mixture then reacts with excess aqueous lead(II) nitrate to form 21.75 g of solid. Determine the mass percent of sodium chloride in the original mixture.

Using a table of standard reductions potentials calculate the solubility product (Ksp) of the compound assigned to you. Write down the two balanced half-reactions and their voltages.  Label the anode, the cathode, which cell is the oxidation and reduction and whether it is positive or negative.  Indicate the direction of electron flow, the concentrations of all ionic species and the composition of the electrodes.  Calculate the voltage of the cell and then, using the voltage, calculate the Ksp of your compound. MUST SHOW ALL WORK!      Calculation of the Ksp of Ag2CO3   Half reactions:                   Overall Voltage:

A certain half-reaction has a standard reduction potential -0 red = = +0.90 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 0.70 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. ロ→ロ 0 Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell can have? yes, there is a minimum. ☐v red If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places. If there is no lower limit, check the "no" box. no minimum Ś ? 0 Is there a maximum standard reduction potential that the half-reaction used at the anode of this cell can have? yes, there is a maximum. Ov red If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places. If there is no upper limit, check the "no" box. no maximum E E = = X

.  At 25 C, the standard hydrogen electrode (SHE) has a half-cell potential that is defined to be 0.00 volts. If the pH is increased at this electrode (keeping everything else the same), at what pH will the half-cell potential be equal to -0.521 volts?

A student made measurements on some electrochemical cells and calculated three quantities: • The standard reaction free energy AG. • The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions E His results are listed below. Unfortunately, the student may have made some mistakes. Examine his results carefully and tick the box next to the incorrect quantity in each row, if any. Note: If there is a mistake in a row, only one of the three quantities listed is wrong. Also, you may assume the number of significant digits in each quantity is correct. Also note: for each cell, the number n of electrons transferred per redox reaction is 1. calculated quantities (Check the box next to any that are wrong.) cell AG K E A 77. kJ/mol -14 3.24 x 10 0.80 V 119. kJ/mol 20 7.05 x 10 -1.23 V 60. kJ/mol -11 3.08 x 10 -0.62 V

A galvanic (voltaic) cell consists of an inert platinum clectrode in a solution containing 1.0 M tin(IV) ion and 1.0M tin(II) ion, and another inert platinum clectrode in a solution containing 1.0 M iron(III) ion and 1.0M iron(II) ion, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found in the standard reduction potentials table. E: cell V

›Calculate the cell potential for the reaction as written at 25.00 °C, given that [Zn²+] = 0.867 M and [Fe²+] = 0.0100 M. Use the standard reduction potentials in this table. Zn(s) + Fe²+(aq) ⇒ Zn²¹(aq) + Fe(s) E = V

Balance the following reaction. Calculate the cell potential and Gibbs free energy of this reaction at standard conditions. Write the line representations for the Galvanic Cells, indicating the anode and cathode.   Cl2        +          Br-       ->         Cl-        +          Br2