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RaamGeneral
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Homework Statement
The pair Ni2+/Ni has E°=-0.25V. Find the minimum pH of the sulution so that a nickel bar immersed in it, doesn't produce hydrogen.
Homework Equations
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The Attempt at a Solution
This problem doesn't make any sense to me. Maybe there is a cell in which the following reaction occurs:
2H+ + Ni ---> Ni2+ + H2
I thought I could use something like the Nernts equation but I don't know [Ni2+].
I need some guidance. Thank you.