The enzyme cholesterol oxidase catalyzes the reaction between cholesterol and oxygen to form cholest-4-ene-3-one and hydrogen peroxide. Explain how you could use this enzyme to make a voltammetric electrode that produces a current that changes with changing cholesterol concentration

You are a bioengineer designing a new type of pacemaker. Which type of Galvanic cell would be best for you to use in this new device?

In an electroplating experiment, a silver nitrate solution was used for silver plating.  If a current of 2.45A is used for 30.0 minutes, what mass of silver will be deposited?  (Hint: first write the electrode equation in which silver is deposited.)

A galvanic (voltaic) cell consists of an electrode composed of iron in a 1.0 M1.0 M iron(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.

A galvanic (voltaic) cell consists of an electrode composed of zinc in a 1.0 M1.0 M zinc 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.

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.

The dilute sulfuric acid solution is electrolyzed with platinum electrodes with a current of 1.25 A for 8 hours. Calculate the volumes of gases formed under standard conditions by writing down the cell reaction.

The silver zinc battery is used in hearing aids. Explain the fundamental redox reactions that occur in this battery and calculate the theoretical cell potential for this system.

A galvanic (voltaic) cell consists of an electrode composed of aluminum in a 1.0 M aluminum 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. Excell V

3. Standard reduction potentials are listed for reactions under standard conditions. Standard conditions are 1 M concentrations of ions, I atm (or I bar) partial pressures for gases, and a temperature of 298 K: In Part I, you were asked to compare your measured cell potential to a calculated standard cell potential. The cell potential you measured was for a galvanic cell you prepared using 0.10 M solutions of Pb2 and Cu, not 1.0 M solutions. Write out the balanced equation for this cell, then give the Nernst equation for this cell. From the Nernst equation, explain why the cell potential under these nonstandard conditions should be equal to the standard cell potential for this particular reaction. a.