2. A student thermally decomposed a 0.810 gram sample of impure potassium chlorate. Manganese dioxide was used as a catalyst in the reaction. The student collected 43.60 mL of oxygen gas over water in a eudiometer. Potassium chloride was the other product of the reaction. The temperature and pressure at collection time were 20.00°C and 762.10 Torr respectively. The water level in the eudiometer was 4.22 cm above the outside water level in the beaker.

2. A student thermally decomposed a 0.810 gram sample of impure potassium chlorate. Manganese dioxide was used as a catalyst in the reaction. The student collected 43.60 mL of oxygen gas over water in a eudiometer. Potassium chloride was the other product of the reaction. The temperature and pressure at collection time were 20.00°C and 762.10 Torr respectively. The water level in the eudiometer was 4.22 cm above the outside water level in the beaker.

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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In a 0.5 L container of gas at sea-level where the temperature is 298 K, the collision rate between molecules, Z, is 1.2 x 104 s. If the collision cross-section, o, of 9 × 10-19 m² remains unchanged, what is the change in collision rate if the temperature is cooled to 170 K? Note: the relative average speed is assumed to remain unchanged. 17
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24b
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