Calculate AH° for the reaction (Referonces] 2K (s) + 2H,О(1) — 2КОН(аq) + Hа (9) Substance and State AH (kJ/mol) K(s) KOH(ag) H2(g) H2O(1) -481 -286 AH° =-390 kJ A 5.00-g chunk of potassium is dropped into 1.10 kg water at 24.5°C. What is the final temperature of the water after the preceding reaction occurs? Assume that all the heat is used to raise the temperature of the water. (Never run this reaction. It is very dangerous; it bursts into flame!) Temperature = °C

Calculate AH° for the reaction (Referonces] 2K (s) + 2H,О(1) — 2КОН(аq) + Hа (9) Substance and State AH (kJ/mol) K(s) KOH(ag) H2(g) H2O(1) -481 -286 AH° =-390 kJ A 5.00-g chunk of potassium is dropped into 1.10 kg water at 24.5°C. What is the final temperature of the water after the preceding reaction occurs? Assume that all the heat is used to raise the temperature of the water. (Never run this reaction. It is very dangerous; it bursts into flame!) Temperature = °C

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 9RQ: What characterizes an electrolytic cell? What is an ampere? When the current applied to an...

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