The standard reduction potential (E⁰) of half reactions can be found in tables like the one in Appendex three in your text book. To be able to use these number we usually need to convert them to the potentilas versus other references such as Ag/AgCl or SCE electrodes. If E⁰ for a half reaction is -0.105 V, what is the standard potential of this system versus SCE reference electrode. (E_SCE = +0.241 V/SHE)