All electrode potentials are measured with respect to which reference electrode?1 pointCalomel electrodeHydrogen absorbed on platinum electrodeGold electrodeHydrogen electrod

Electrode Potential:

The electrode potential of normal hydrogen electrode is

The following voltaic cells were used in potentiometric analyses, what was the value of E in each case; (give the value involts to 3 decimal places).(a) Ag(s) | Ag (1 M) || Sn (0.086 M), Sn (0.54 M) | Pt(s)Reference electrode potentials (E ):AgCl(s) + e → Ag(s) + Cl (sat’d KCl) E° = 0.197 VHg Cl + 2e → 2Hg + 2Cl (sat’d KCl) E = 0.242 V(= SCE)

The standard potential of sat. calomel electrode is *1 point0.240 V0.197 V0.220 V0.420 V

Which electrode is used of reference electrode 1. HgCl2 2. Hg2Cl2