A coffee-cup calorimeter contains 70 mL of water with an initial temperature of 24.9°C. An unknown sample with a mass of 6.259 grams was placed inside making the water temperature rise up to 25.5°C. The initial temperature of the metal was 86.4°C. (Water: density = 1g/mL; specific heat = 4.184 J/g-°C). 1. How much heat (in Joules) was absorbed by the water in the calorimeter?_________ (Write your answer in 2 decimal places without the unit).

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Q: A chemist measures the energy change AH during the following reaction: Cl₂(g)+H₂(g) → 2 HCl(g) ΔΗ=…

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Q: X 10 J/g

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Q: 11. A combustion reacti What is the final temp

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Q: IN B C. LI %#3 Assume that it is possible to heat water with perfect insulation (all the heat from…

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Q: 2

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