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प्रश्न
Calculate the standard potential of the following cell at 25°C:
Zn(s) | Zn2+ (0.08 M) || Cr3+ (0.1 M) | Cr(s)
`E_(Zn)^0` = −0.76 V, `E_(Cr)^0` = −0.74 V
संख्यात्मक
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उत्तर
`E_(cell)^0 = E_(cathode)^0 - E_(anode)^0`
`E_(cell)^0 = E_(Cr)^0 - E_(Zn)^0`
= −0.74 V − (−0.76 V)
= 0.02 V
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