- 2070 Bhadra · 1 mark
Normal hydrogen electrode
Short answer
The normal hydrogen electrode is a reference electrode with platinum black in 1 M H+, H2 gas at 1 atm and 25°C, its potential arbitrarily set to zero. Notation: Pt, H2 (1 atm) | H+ (1 M).
What is normal hydrogen electrode?
The normal (standard) hydrogen electrode is a reference electrode made of a platinum foil coated with platinum black, dipped in a solution of 1 N (1 M) H⁺ ions, with pure hydrogen gas at 1 atm bubbled over it at 25°C. Its potential is arbitrarily taken as zero. Notation: Pt, H₂ (1 atm) | H⁺ (1 M).
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