Potassium chlorate upon heating melts at 355 °C and decomposes at 480 °C. In the presence of MnOzcs) catalyst, KCI03(5) completely decomposes into Oz(®) and KCl(s). However, MnOz(s) itself does not take part in the overall chemical reaction. In an experiment to determine the gas constant, 1.300 g of pure KCIO3(s) and 100. mg of MnO2(s) were mixed in a testube and heated over a bunsen burner. The resulting Oz(g) product was bubbled in distilled water that is at exactly 25 °C (or 298.15 K) and collected in a 100-mL eudiometer. The experiment was done under a barometric pressure of 755 torr. The vapor pressure of water vapor at 25 °C is 23.8 mmHg.

Potassium chlorate upon heating melts at 355 °C and decomposes at 480 °C. In the presence of MnOzcs) catalyst, KCI03(5) completely decomposes into Oz(®) and KCl(s). However, MnOz(s) itself does not take part in the overall chemical reaction. In an experiment to determine the gas constant, 1.300 g of pure KCIO3(s) and 100. mg of MnO2(s) were mixed in a testube and heated over a bunsen burner. The resulting Oz(g) product was bubbled in distilled water that is at exactly 25 °C (or 298.15 K) and collected in a 100-mL eudiometer. The experiment was done under a barometric pressure of 755 torr. The vapor pressure of water vapor at 25 °C is 23.8 mmHg.

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter5: Gases

Section: Chapter Questions

Problem 33QAP: Dichlorine oxide is used as bactericide to purify water. It is produced by the chlorination of...

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