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S. Calculate the number of joules released when 75.0 grams of water are cooled from 100.00C to 27.5°C.

S. Calculate the number of joules released when 75.0 grams of water are cooled from 100.00C to 27.5°C.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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5. Calculate the heat release when 266 grams of white phosphorus P4 burns in air according to the following equation. P4 + 502 → P4010 AH = - 3013 kJ 6. Calculate the number of joules released when 75.0 grams of water are cooled from 100.0°C to 27.5°C. 7. Calculate the specific heat of gold if it required 48.0 joules of heat to warm 25.0 grams of gold from 40.0°C to 55.0°C. 8. A sample of zinc, specific heat of 0.386 J/g°C, released 1,964 joules of heat when it cooled from 92.5°C to 65.0°c. What was the mass of the zinc sample? 9. What would be the final temperature if 8.94 x 103 joules of heat were added to 454 grams of copper, specific heat 0.386 J/g°C, at 23.0°C? 10. What would be the final temperature if 8.94 x 103 joules of heat were added to 454 grams of copper, specific heat 0.386 J/g°C, at 23.0°C?
Transcribed Image Text:5. Calculate the heat release when 266 grams of white phosphorus P4 burns in air according to the following equation. P4 + 502 → P4010 AH = - 3013 kJ 6. Calculate the number of joules released when 75.0 grams of water are cooled from 100.0°C to 27.5°C. 7. Calculate the specific heat of gold if it required 48.0 joules of heat to warm 25.0 grams of gold from 40.0°C to 55.0°C. 8. A sample of zinc, specific heat of 0.386 J/g°C, released 1,964 joules of heat when it cooled from 92.5°C to 65.0°c. What was the mass of the zinc sample? 9. What would be the final temperature if 8.94 x 103 joules of heat were added to 454 grams of copper, specific heat 0.386 J/g°C, at 23.0°C? 10. What would be the final temperature if 8.94 x 103 joules of heat were added to 454 grams of copper, specific heat 0.386 J/g°C, at 23.0°C?
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