Explain the silver metal reacting with the oxygen in the air

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You have a badly tarnished silver teapot. The tarnish is a result of the silver metal reacting with the oxygen in the air according to

4Ag(s)+O2(g)?2Ag2O(s),?H=?62.2kJ/mol

Carefully clean the teapot and then, out of curiosity, you weigh it. The teapot has a mass of 913g . After some more measuring and calculating, you also determine that 5.40% of the silver is on the surface and exposed to the air. If the teapot were once again to become completely tarnished, how much mass ?m is converted to energy?

Reference no: EM13210941

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