2 K(s) + 2 H2O(l) → 2 KOH(aq) + H2(g) AH-393 kJ/molræn When 3.9 g of K(s) is added to 200. mL of water at 25°C in a calorimeter, all the K(s) reacts with the water as represented by the equation above. Which of the following is true about the pH of the water after the reaction is complete? (A) pH <7 B pH = 7 pH > 7 The pH of the water cannot be determined without additional information.

2 K(s) + 2 H2O(l) → 2 KOH(aq) + H2(g) AH-393 kJ/molræn When 3.9 g of K(s) is added to 200. mL of water at 25°C in a calorimeter, all the K(s) reacts with the water as represented by the equation above. Which of the following is true about the pH of the water after the reaction is complete? (A) pH <7 B pH = 7 pH > 7 The pH of the water cannot be determined without additional information.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 5.61QE: When 7.11 g NH4NO3 is added to 100 mL water, the temperature of the calorimeter contents decreases...

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