For the following reaction, Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s), calculate the emf at 25 °C with a = 0.025 M and = 0.50 M given the E° = 1.1 V, R = 8.314 J/K-mol, and F = 96,485 J/V-mol.

A solution contains three anions with the following concentrations: 0.20 M CrO42–, 0.10 M CO32–, and 0.010 M Cl–. If a dilute AgNO3 solution is slowly added to the solution, what is the first compound to precipitate: Ag2CrO4 (Ksp = 1.2 × 10–12), Ag2CO3 (Ksp = 8.1 × 10–12), or AgCl (Ksp = 1.8 × 10–10)?

A reaction can only be spontaneous if which of the following conditions are true?

For the reaction Fe3+(aq) + Co2+(aq) → Fe2+(aq) + Co3+(aq), what is reduced?

Heart pacemakers are often powered by lithium–silver chromate “button” batteries. The overall cell reaction is 2 Li(s) + Ag2CrO4(s) → Li2CrO4(s) + 2 Ag(s). Lithium metal is the reactant at one of the electrodes of the battery. Is it the anode or the cathode and is oxidation or reduction?

Which of the following is the balanced redox equation for following reaction in acidic solution MnO4-(aq) + Fe2+(aq) → Mn2+(aq) + Fe3+(aq)?

Which of the following compounds would give the most basic aqueous solution?

What is the pH of a 0.075M solution of ethylamine, C2H5NH2, which has a Kb = 6.4 x 10-4?

Calculate the pH of a solution in which is 0.010 M.

What is the pH of a 0.050M solution of benzoic acid, C6H5COOH, which has a Ka = 6.3 x 10-5?