7.000 g of Compound X with molecular formula CH, are burned in a constant-pressure calorimeter containing 20.00 kg of water at 25 °C. The temperature of the water is observed to rise by 3.646 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound X at 25 °C. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. plo

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O THERMOCHEMISTRY
Jacqueline
Solving combustion thermochemistry problems
7.000 g of Compound X with molecular formula CHg are burned in a constant-pressure calorimeter containing 20.00 kg of water at 25 °C. The temperature of
the water is observed to rise by 3.646 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.)
Calculate the standard heat of formation of Compound X at 25 °C.
Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.
Explanation
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Transcribed Image Text:O THERMOCHEMISTRY Jacqueline Solving combustion thermochemistry problems 7.000 g of Compound X with molecular formula CHg are burned in a constant-pressure calorimeter containing 20.00 kg of water at 25 °C. The temperature of the water is observed to rise by 3.646 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound X at 25 °C. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. Explanation Check 2021 McGravw-Hill Education All Rights Reserved Terms of Use Privacy Accessibility MacBook Air olo
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