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Carefully clean the teapot

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Reference no: EM131183923

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),ΔH=-62.2kJ/mol

You carefully clean the teapot and then, out of curiosity, you weigh it. The teapot has a mass of 869 g . After some more measuring and calculating, you also determine that 10.0 % 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 Δm is converted to energy?

Reference no: EM131183923

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