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?

Identify the Brønsted-Lowry base in the following reaction, (CH3)3N(aq) + H2O(l) → (CH3)3NH+(aq) + OH-(aq).

Calculate the concentration of OH-(aq) in a solution in which is 0.010 M.

Which of the following factors affect the rate of a reaction (reaction rate)?

The decomposition reaction of N2O5 in carbon tetrachloride is 2 N2O5 → 4 NO2 + O2. The rate law is first order in N2O5. At 64 °C the rate constant is 4.82 × 10–3 s–1. What is the rate of reaction when = 1.00 M?