construction of standard hydrogen electrode
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The standard hydrogen electrode consists of a platinum electrode coated with platinum black. The electrode is dipped in an acidic solution and pure hydrogen gas is bubbled through it. ... This implies that the pressure of hydrogen gas is one bar and the concentration of hydrogen ion in the solution is one molar.
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hydrogen electrode consists of hydrogen gas at 1 ATM equilibrium with h + ions of 1m solution electrical contact of this electrode is provided by inert metal like platinum coated with PT black
Explanation:
It other than 1 the EMF of hydrogen electrode depends upon
a) concentration of h + ions in solution
b) pressure of the hydrogen gas
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