2. Solving a chemistry problem

2. Solving a chemistry problem

7. At 298 K, the EMF of the circuits Pt,H2|H ||HNO3, TlNO3(aq), Tl(NO3)3(aq),Pt
c1=1 M c1=0.42 M c3=0.0216 M c4=0.0337 M equals 1.20 V. Calculate the standard electrode potential Tl3 ,Tl |Pt. Take the average activity coefficients of TlNO3 and Tl(NO3)3 in solutions of the indicated concentrations equal to unity. Nitric acid is added to prevent the hydrolysis of Tl(NO3)3.

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