2. Based on the molar masses of the three possible solid products in Equations 1-3, and the number of moles of reactant in each case, calculate the expected masses of the three possible products for Trials 1 and 2. Holding test tube #1 with the test tube clamp, slowly move the test tube back and forth through the burner flame to gently heat the solid. Using a spatula, add approximately 0. If the second mass differs from the first mass by more than 0. Mixtures of chlorates and organic compounds pose a severe risk of explosions.  This later won him an Ig Nobel Prize in 2005, and was the basis for the May 2006 "Exploding Pants" episode of MythBusters. Compare the actual mass of product obtained in Trials 1 and 2 with the calculated or expected masses. 4. 8. In addition, this enzyme is directly denatured by chlorate. Holding test tube #1 with the test tube clamp, slowly move the test tube back and forth through the burner flame to gently heat the solid. It decomposes above 300 °C to release oxygen and leaves sodium chloride. Contact with metal powders or combustible organic compounds may cause fires. Some trade names for products containing sodium chlorate include Atlacide, Defol, De-Fol-Ate, Drop-Leaf, Fall, Harvest-Aid, Kusatol, Leafex, and Tumbleaf. All perchlorate compounds are produced industrially by the oxidation of solutions of sodium chlorate by electrolysis. It is a white crystalline powder that is readily soluble in water. Sodium chlorate may be used to control a variety of plants including morning glory, canada thistle, johnson grass, bamboo, Ragwort, and St John's wort. What is the balanced chemical equation for the decomposition of sodium chlorate? 12. Avoid contact with eyes and skin. Cool the test tube on the wire gauze until it is room temperature. All are white solids at room temperature. 01 g and record all data in the data table. Allow the test tube to cool completely on a wire gauze with a ceramic center. Label them 1 and 2. 13. Do not inhale the smoke. If the second mass differs from the first mass by more than 0.02 g, repeat the heating cycle a third time. Sodium chlorate has a soil sterilant effect. The largest application of ClO2, which accounts for about 95% of the use of chlorate, is in bleaching of pulp. Hi there, would you like to get such a paper? Based on the molecular formula of sodium chlorate, three possible reactions will account for the loss of oxygen gas upon heating (Equations 1-3). The main commercial use for sodium chlorate is for making chlorine dioxide (ClO2). 5. The smoke represents a loss of starting material due to evaporation of molten sodium chlorate and will reduce the yield of product. Holding the test tube in an almost horizontal position, gently tap the test tube to distribute the solid sodium chlorate evenly along the bottom one-third of the test tube. Sodium chlorate is used as a source of oxygen in emergency oxygen generators. Mixing with other herbicides in aqueous solution is possible to some extent, so long as they are not susceptible to oxidation. Compare the actual mass of product obtained in Trials 1 and 2 with the calculated or expected masses. Sodium chlorate is toxic: "doses of a few grams of chlorate are lethal". � The main commercial use for sodium chlorate is for making chlorine dioxide (ClO2). 6. Measure the mass a second time. Allow the test tube to cool completely on a wire gauze with a ceramic, heat-resistant center. Most commercially available chlorate weedkillers contain approximately 53% sodium chlorate with the balance being a fire depressant such as sodium metaborate or ammonium phosphates. Measure the mass a second time. Quickly remove the test tube from the flame if a white smoke is given off from the open end of the test tube. � Acute severe hemolysis results, with multi-organ failure, including DIC and kidney failure. The solid should begin to melt and bubble slightly. Do NOT dispose of exess sodium chlorate in the trash. Keep away from contact with organic materials, including rubber stoppers, rubber tubing, etc. 3. 2 N a C l ( s ) + 3 O 2 ( g ) W h a t i s t h e a c t u a l chemical equation for the thermal decomposition of sodium chlorate? Measure and record the combined mass of each test tube and sodium chlorate. It is possible to determine the chemical equation for the decomposition of sodium chlorate by applying the principles of stoichiometry to the masses of the reactants and products. The sale of sodium chlorate as a weedkiller was banned in the European Union in 2009 citing health dangers, with existing stocks to be used within the following year.