Solved: In 1973 the wreckage of the Civil War ironclad USS

Chapter , Problem 98

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In 1973 the wreckage of the Civil War ironclad USS Monitor was discovered near Cape Hatteras, North Carolina. (The Monitor and the CSS Virginia [formerly the USS Merrimack] fought the first battle between iron-armored ships.) In 1987 investigations were begun to see if the ship could be salvaged. It was reported in Time (June 22, 1987) that scientists were considering adding sacrificial anodes of zinc to the rapidly 2e_ _ Ag2S1s2!2Ag1s2 _ S2_1aq2 Gf 25C _ _480. kJ/mol.) G, e 3Ag2S1s2 _ 2Al1s26Ag1s2 _ 3S2_1aq2 _ 2Al3_1aq2 G _ _411 kJ 2Al3_1aq2 _ 3M1s2!3M2_1aq2 _ 2Al1s2 Pt 2_ _ 2e_ e _ 1.19 V !Pt Cl_ Cu(NH3)4 Cu2_ 2_ Ag_ _ e_!Ag Cu2_ _ 2e_!Cu NO3 e _ 0.96 V _ _ 4H_ _ 3e_!NO _ 2H2O PtCl4 e _ 0.755 V 2_ _ 2e_!Pt _ 4Cl_ Pt 2_ _ 2e_ e _ 1.188 V !Pt Ni 2_ _ 2e_!Ni Al3_ _ 3e_!Al AgCl _ e_!Ag _ Cl_ Fe3_ _ e_!Fe2_ Cu2_ _ 2e_!Cu corroding metal hull of the Monitor. Describe how attaching zinc to the hull would protect the Monitor from further corrosion.