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Potassium metal reacts violently with water according to the following reaction: 2K 2H,O, HA 2KOH(aq) A 5.00 g sample of metal was reacted with water. a. What volume of dry hydrogen gas would be produced at 102 kPa and 20 degree C?

Potassium metal reacts violently with water according to the following reaction: 2K 2H,O, HA 2KOH(aq) A 5.00 g sample of metal was reacted with water. a. What volume of dry hydrogen gas would be produced at 102 kPa and 20 degree C?

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter8: Properties Of Gases
Section: Chapter Questions
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36. Potassium metal reacts violently with water according to the following reaction: 2H,O, 2K H 2KOH(aq) A 5.00 g sample of metal was reacted with water. a. What volume of dry hydrogen gas would be produced at 102 kPa and 20 degree C? b. During one reaction, 545 mL of wet hydrogen gas was collected. If the gas was collected at 750 mmHg and 31 C, what mass of potassium was reacted? c. After the reaction is over, evaporation of water will leave the solid KOH. What mass of NaOH can be produced if the 870 mL of dry hydrogen gas is produced at 25 C and 1.1 atm?
Transcribed Image Text:36. Potassium metal reacts violently with water according to the following reaction: 2H,O, 2K H 2KOH(aq) A 5.00 g sample of metal was reacted with water. a. What volume of dry hydrogen gas would be produced at 102 kPa and 20 degree C? b. During one reaction, 545 mL of wet hydrogen gas was collected. If the gas was collected at 750 mmHg and 31 C, what mass of potassium was reacted? c. After the reaction is over, evaporation of water will leave the solid KOH. What mass of NaOH can be produced if the 870 mL of dry hydrogen gas is produced at 25 C and 1.1 atm?
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