Answer to Question #205559 in General Chemistry for Nireshwin

Question

. A galvanic cell consists of one half-cell with zinc metal immersed in 1.0 M Zn 2+ solution and another half-call with P metal immersed in 1.0 M P 3+ solution. The cell potential, Ecell is recorded as +2.26V at standard conditions. If the electrode P shows increase in weight, (a) Draw the galvanic cell based on the statements above. (b) Write the half-cell equation of the anode and cathode. (c) Write the overall cell reaction equation. (d) Write the cell notation of the electrochemical cell. (e) Calculate the standard electrode potential for P 3+ /P electrode [E°Zn 2+ /Zn = -0.76] 

Answer 1

Cm=1M/56g/mol=0.018mol

Cm(Zn)=1M/76g/mol=0.013mol