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The molecular weight of Cr(CO)6 is 220 g/mol. When 2.20 grams of Cr(CO)6 reacts according to the following equation at 400 °K in a closed system the temperature goes down and 5.2 kJ of hear is absorbed: Cr(CO)6(solid) -> Cr(solid) + 6 CO(gas). Calculate ?E° and ?H° for this reaction.

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