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17 Nov 2019
For an electrostatic cell has the following cell diagram Cd(s)|CdCl_2(x m, aq)|AqCl(s)|Ag(s) Draw the cell Write the cathode half reaction Write the anode half reaction The overall chemical reaction of the cell Using the attached table calculate the standard potential of the cell (elementof^0) Write the Nemst Equation for the cell including the activity of all the involved species. Show that the Nemst Equation can be simplified to an expression containing only the activities of the ions. Explain all your reasoning. Knowing that the activity coefficient for an aqueous solution of CdCl_2 with a molality of 0.1 mol/Kg is gamma_i = 0.228 and that the standard concentration is m^0 = 1 mol/Kg. Calculate the activity of Cd^2+ assuming that gamma_plusorminus = gamma_i. Calculate the activity of Cl assuming that gamma_plusorminus = gamma_i. Calculate the potential of the cell if it contains 0.1 m of CdCl_2.
For an electrostatic cell has the following cell diagram Cd(s)|CdCl_2(x m, aq)|AqCl(s)|Ag(s) Draw the cell Write the cathode half reaction Write the anode half reaction The overall chemical reaction of the cell Using the attached table calculate the standard potential of the cell (elementof^0) Write the Nemst Equation for the cell including the activity of all the involved species. Show that the Nemst Equation can be simplified to an expression containing only the activities of the ions. Explain all your reasoning. Knowing that the activity coefficient for an aqueous solution of CdCl_2 with a molality of 0.1 mol/Kg is gamma_i = 0.228 and that the standard concentration is m^0 = 1 mol/Kg. Calculate the activity of Cd^2+ assuming that gamma_plusorminus = gamma_i. Calculate the activity of Cl assuming that gamma_plusorminus = gamma_i. Calculate the potential of the cell if it contains 0.1 m of CdCl_2.
Sixta KovacekLv2
21 Jun 2019