When heated, potassium chlorate (KC103) has a melting point of 355 °C and it decomposes in the temperature of 480 °C . Potassium chlorate (KC103(s)) then decomposes to KCI(s) and 02(g) in the presence of MnO2(s) catalyst. MnO2(s) does not participate in the overall chemical process, though. To determine the gas constant, the experiment used 100. mg of MnO2(s) and 1.300 g of pure KCIO3(s), then they were combined together in a test tube and heated over a bunsen burner. The resultant O2(g) product was collected in a 100-mL eudiometer after being bubbled in distilled water at exactly 25 °C (or 298.15 K). The experiment was carried out at a 755 torr barometric pressure. At 25 °c, the water vapor has a vapor pressure of 23.8 mmHg. The heat was removed after a few seconds of reaction, and the contents of the test tube containing the remaining KCI03(s), Mn02(s) catalyst, and the KCl product were weighed to be 1.285 g.The liquid level in the eudiometer is 1.36 cm below the reservoir's water level. The trapped gas is 88.57 mL, according to the eudiometer's graduation. iii) In mmHg, compute the partial pressure of the collected 02 iv.) Compute the experimental value for the ideal gas constant,R. Use the unit L * atm * mol-1 * K
When heated, potassium chlorate (KC103) has a melting point of 355 °C and it decomposes in the temperature of 480 °C . Potassium chlorate (KC103(s)) then decomposes to KCI(s) and 02(g) in the presence of MnO2(s) catalyst. MnO2(s) does not participate in the overall chemical process, though. To determine the gas constant, the experiment used 100. mg of MnO2(s) and 1.300 g of pure KCIO3(s), then they were combined together in a test tube and heated over a bunsen burner. The resultant O2(g) product was collected in a 100-mL eudiometer after being bubbled in distilled water at exactly 25 °C (or 298.15 K). The experiment was carried out at a 755 torr barometric pressure. At 25 °c, the water vapor has a vapor pressure of 23.8 mmHg. The heat was removed after a few seconds of reaction, and the contents of the test tube containing the remaining KCI03(s), Mn02(s) catalyst, and the KCl product were weighed to be 1.285 g.The liquid level in the eudiometer is 1.36 cm below the reservoir's water level. The trapped gas is 88.57 mL, according to the eudiometer's graduation. iii) In mmHg, compute the partial pressure of the collected 02 iv.) Compute the experimental value for the ideal gas constant,R. Use the unit L * atm * mol-1 * K
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter5: The Gaseous State
Section: Chapter Questions
Problem 5.127QP: A 1.000-g sample of an unknown gas at 0C gives the following data: P(atm) V (L) 0.2500 3.1908 0.5000...
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