Chemistry, 10.03.2021 07:10 flamingtacos4026
How many joules are given off when 120 grams of water are cooled from 25C to -25C? (The answer given says 55.5 kJ, but I get 58.6 kJ; somebody explain)
Answers: 3
Chemistry, 22.06.2019 07:20
2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here
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Chemistry, 22.06.2019 22:00
4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.
Answers: 2
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How many joules are given off when 120 grams of water are cooled from 25C to -25C?
(The answer give...
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