Calculate the potential of a metal electrode with the specified concentration of metal ions and the potential of a hydrogen (hydrogen) electrode with the specified concentration of hydrogen ions in solution. Draw a diagram of the galvanic element formed by these electrodes, write the equation of electrode processes and current-forming reactions. Calculate the EMF of the galvanic element. [Al3+] = 0.001 mol/l, [H+] = 10^-11 mol/l