Calculate the reduction potential of the following electrodes `:`
`a.` `Pt,H_(2)(4 atm)|H_(2)SO_(4)(0.01M)`
`b.` `Pt,H_(2)(1 atm)| HCl (0.2 M)`
`c.` Calculate the potential of hydrogen electrode in contact with a solution whose
`i pH=5" "ii. pOH=4`

Explanation

To calculate the reduction potential of the given electrodes, we will use the Nernst equation, which is given by:

\[ E = E^\circ - \frac{0.059}{n} \log K \]

Where:
- \( E \) is the reduction potential.
- \( E^\circ \) is the standard reduction potential (for hydrogen electrode, \( E^\circ = 0 \) V).
- \( n \) is the number of electrons involved in the reaction.
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