Why is 1.498 incorrect? The procedure of the Experiment To qualitatively demonstrate that the residue resulting from the decomposition of potassium chlorate is potassium … Answer in units of mol. Thermal decomposition of certain salts, such as potassium chlorate or potassium nitrate: The decomposition of potassium chlorate is catalyzed by oxides of transition metals; manganese dioxide (pyrolusite, MnO 2) is frequently used. I just can't do this... Two moles of potassium chloride and three moles of oxygen are produced from the decomposition of two moles of potassium chorate. In this experiment, potassium chlorate will be used instead of the sodium chlorate employed commercially (see Figure 1). chemistry When KClO3 is heated strongly, it breaks down releasing oxygen gas and leaving behind a thermally stable (i.e., heat-insensitive) solid residue of an ionic potassium compound. The temperature is {eq}25\;^\circ {\rm{C}} The thermal decomposition of potassium chlorate can be used to produce oxygen in the laboratory. Medium. This can be used either to prepare potassium or barium chlorate (or other chlorates which are not further elaborated upon here), or it can be used to prepare perchlorates, described elsewhere. Potassium Chlorate Potassium Chloride Oxygen Students will perform a quantitative analysis of the reactants and products of this reaction, measuring the initial mass of solid potassium chlorate used (before heating), and the mass of the solid potassium chloride product, or … 4? In an experiment, an iron sample is oxidized to iron (III) oxide by oxygen, which is generated in the thermal decomposition of potassium chlorate. This reaction occurs at a temperature of between 150-300 ° C. For this … Our experts can answer your tough homework and study questions. What volume (L) of O2 gas at 25 °C and 1.00 atm pressure is produced by the decomposition of 7.5 g of KClO3 (s)? Use the Van der Waals equation to calculate the pressure exerted by 1.00 mol of Cl2; in 22.41 L at 0.0 degrees C. The constants for Cl are a = 6.49 L2 atm/mol2 and b = 0.0526 L/mol. Here is my work: V=nRT/P .0611995 mol of O2 x . The thermal decomposition of potassium chlorate can be used to produce oxygen in the laboratory. Which of the following statements best describes p orbitals? Here is my work: V=nRT/P.0611995 mol of O2 x .0821Latm/molL x298.15K / 1.0atm=1.498 . Write the catalyst used in the decomposition of potassium chlorate to get potassium chloride and oxygen. Add your answer and earn points. 2. Some examples of these reactions are 2 Ag 2 O(s) 4 Ag(s) + O 2 (g) 2 BaO 2 (s) 2 BaO(s) + O 2 (g) MnO 2 2 KClO 3 (s) 2 KCl(s) + 3 O 2 (g) The last reaction, the decomposition of potassium chlorate, … Here is my work: V=nRT/P.0611995 mol of O2 x .0821Latm/molL x298.15K / 1.0atm=1.498 Why is 1.498 incorrect? chemical reaction involving gases, the volume of gas can be related to the moles of that gas, and used for stoichiometric purposes. Potassium chlorate was one key ingredient in early firearms percussion caps (primers). Assuming ideal behavior for each gas, what is... What is Specific Volume? when that is understood can one start to consider useful applications of the reaction. Answer. 2KClO3 --> 2KCl +3O2 What volume of O2 gas at 298 K and 1.0 atm pressure is produced by the decomposition of 7.50 g of KClO3 (FW=122.6)? The molecular mass of the compounds before and after thermal decomposition is then used in stoichiometry to determine the molecular mass of oxygen removed during the process. {/eq}? 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