E " HClO2 ( aq ) has a standard potential of + 1.9 V, which is more than enough to oxidize copper.
12.
The species are connected by an arrow, and the numerical value of the standard potential ( in volts ) for the reduction is written over the arrow.
13.
Bard et al . give the following correlations for the standard potential of the silver chloride electrode as a function of temperature ( where t is temperature in �C ):
14.
Thus, the standard potential of the water electrolysis cell is " 1.23 V at 25 �C at pH 0 ( [ H + ] = 1.0 M ).
15.
Water splitting can be done at higher pH values as well however the standard potentials will vary according to the Nernst equation and therefore shift by-59 mV for each pH unit increase.
16.
According to tabulated values of standard potentials at pH = 0 for the first-row transition metals, any Nonstoichiometry of oxides containing several elements in oxidation states suitable for cerimetry is determined in one titration.
17.
The most commonly used anion is sulfate ( ), as it is very difficult to oxidize, with the standard potential for oxidation of this ion to the peroxydisulfate ion being " 2.05 volts.
18.
Looking at two slopes among a set of three oxidation numbers on the diagram, assuming the two standard potentials ( slopes ) are not equal, the middle oxidation will either be in a hill or valley form.
19.
The standard potential of the water electrolysis cell ( when heat is added to the reaction ) is a minimum of 1.23 V at 25 �C . The operating potential is actually 1.48 V ( or above ) in practical electrolysis when heat input is negligible.
20.
The standard electrode potential E 0 against standard hydrogen electrode ( SHE ) is 0.230V ?10mV . The potential is however very sensitive to traces of bromide ions which make it more negative . ( The more exact standard potential given by an IUPAC review paper is + 0.22249 V, with a standard deviation of 0.13 mV at 25 �C .)
