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- Calculate the standard cell potential for each of the electrochemical cells in Problem 44.
Problem 5
- A 0.0251-L sample of a solution of Cu+ requires 0.0322 L of 0.129 M KMnO4 solution to reach the equivalence point. The products of the reaction are Cu2+ and Mn2+. What is the concentration of the Cu+ solution?
Problem 13
Problem 37a,b
Balance each redox reaction occurring in acidic aqueous solution. a. K(s) + Cr3+(aq) → Cr(s) + K+(aq) b. Al(s) + Fe2+(aq) → Al3+(aq) + Fe(s)
Problem 37c
Balance each redox reaction occurring in acidic aqueous solution. c. BrO3–(aq) + N2H4(g) → Br–(aq) + N2(g)
Problem 38a
Balance each redox reaction occurring in acidic aqueous solution. a. Zn(s) + Sn2+(aq) → Zn2+(aq) + Sn(s)
Problem 38b
Balance each redox reaction occurring in acidic aqueous solution. b. Mg(s) + Cr3+(aq) → Mg2+(aq) + Cr(s)
Problem 38c
Balance each redox reaction occurring in acidic aqueous solution. c. MnO4–(aq) + Al(s) → Mn2+(aq) + Al3+(aq)
Problem 40a
Balance each redox reaction occurring in acidic aqueous solution. a. I–(aq) + NO2–(aq) → I2(s) + NO(g) b. ClO4–(aq) + Cl–(aq) → ClO3–(aq) + Cl2(g)
Problem 40c
Balance each redox reaction occurring in acidic aqueous solution. c. NO3–(aq) + Sn2+(aq) → Sn4+(aq) + NO(g)
Problem 41a
Balance each redox reaction occurring in basic aqueous solution. a. H2O2(aq) + ClO2(aq) → ClO2–(aq) + O2(g)
Problem 41b
Balance each redox reaction occurring in basic aqueous solution. b. Al(s) + MnO4–(aq) → MnO2(s) + Al(OH)4–(aq)
Problem 42a
Balance each redox reaction occurring in basic aqueous solution. a. MnO4–(aq) + Br–(aq) → MnO2(s) + BrO3–(aq)
Problem 42b
Balance each redox reaction occurring in basic aqueous solution. b. Ag(s) + CN–(aq) + O2(g) → Ag(CN)2–(aq)
Problem 42c
Balance each redox reaction occurring in basic aqueous solution. c. NO2–(aq) + Al(s) → NH3(g) + AlO2–(aq)
Problem 48a
Sketch a voltaic cell for each redox reaction. Label the anode and cathode and indicate the half-reaction that occurs at each electrode and the species present in each solution. Also indicate the direction of electron flow. a. Ni2+(aq) + Mg(s) → Ni(s) + Mg2+(aq)
Problem 49
Calculate the standard cell potential for each of the electro- chemical cells in Problem 43.