a. Determine the voltage produced by a galvanic cell composed of two aluminum electrodes, one in 0.10 M Al(NO3)3 and the other in 0.50 M Al(NO3)3.
b. What mass of chromium metal can be deposited on a piece of metal immersed into an electroplating solution containing Cr+3 ions when a current of 4.50 Amps is run through the cell for 45 minutes?