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Potassium superoxide reacts violently with water to produce potassium hydroxide, hydrogen peroxide, and oxygen gas: 2K20(s) + 2H20(1) 2KOH(aq) + H2 02 (aq) + === 02 (g) Calculate the volume of gas that was produced if 350g of K20 reacted with an excess of water and the gases were collected in a eudiometer at 250C (where the partial pressure of water vapor is 17.54 mm Hg) and the atmospheric pressure that day was 747 mm Hg. By the end of the experiment, the water column rose 4.75cm above the surface of the water in the beaker where the eudiometer was submerged. (You will need to remember that the density of mercury is 13.6 g/mL to make the pressure adjustment)

Potassium superoxide reacts violently with water to produce potassium hydroxide, hydrogen peroxide, and oxygen gas: 2K20(s) + 2H20(1) 2KOH(aq) + H2 02 (aq) + === 02 (g) Calculate the volume of gas that was produced if 350g of K20 reacted with an excess of water and the gases were collected in a eudiometer at 250C (where the partial pressure of water vapor is 17.54 mm Hg) and the atmospheric pressure that day was 747 mm Hg. By the end of the experiment, the water column rose 4.75cm above the surface of the water in the beaker where the eudiometer was submerged. (You will need to remember that the density of mercury is 13.6 g/mL to make the pressure adjustment)

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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Potassium superoxide reacts violently with water to produce potassium hydroxide, hydrogen peroxide, and oxygen gas: 2K2O(s) + 2H2O(1) : 2KOH(aq) + H2 02 (aq) + === 02 (g) Calculate the volume of gas that was produced if 350g of K20 reacted with an excess of water and the gases were collected in a eudiometer at 250C (where the partial pressure of water vapor is 17.54 mm Hg) and the atmospheric pressure that day was 747 mm Hg. By the end of the experiment, the water column rose 4.75cm above the surface of the water in the beaker where the eudiometer was submerged. (You will need to remember that the density of mercury is 13.6 g/mL to make the pressure adjustment)
Transcribed Image Text:Potassium superoxide reacts violently with water to produce potassium hydroxide, hydrogen peroxide, and oxygen gas: 2K2O(s) + 2H2O(1) : 2KOH(aq) + H2 02 (aq) + === 02 (g) Calculate the volume of gas that was produced if 350g of K20 reacted with an excess of water and the gases were collected in a eudiometer at 250C (where the partial pressure of water vapor is 17.54 mm Hg) and the atmospheric pressure that day was 747 mm Hg. By the end of the experiment, the water column rose 4.75cm above the surface of the water in the beaker where the eudiometer was submerged. (You will need to remember that the density of mercury is 13.6 g/mL to make the pressure adjustment)
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