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gen chem

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if the voltage of the cell is 2.0898V at 25C when [Mg2+] = 0.1945M and the pressure of H2 = 1.00atm, what is the pH? E0=2.3700V

Mg(s)+2H+(aq)<--> Mg2+(aq)+ H2(g)

  • gen chem - ,

    Ecell = Eocell -(0.0592/2)*log Q.

    Substitute the values from the problem and solve for H^+ (a part of Q). Convert to pH.

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