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- When mixing sodium chlorate solution (volume 1.0L, density 1.1614 g/ml, mass fraction 22%) with hydrochloric acid( 2L, density 1.0980 g/ml, mass fraction 20%) an antiseptic substance was released. Write and balance the Mentioned reaction and name this anticipatic substance.Why is it improper to fill a volumetric flask to the calibrated mark with solvent BEFORE adding the solute?What is precipitimetry?
- You will analyze the residue left in the "container" in order to experimentally verify its identity. To do this, you will need three test tubes. Potassium chlorate is added to tube #1, potassium chloride to tube #2, and the residue to tube #3. These solids are all dissolved in distilled water. a. What will you observe if you obtain a positive test for chloride ions?A student carried out an experiment trying to prepare tetra-methyl-ammonium tri-iodide.The student weighed 1.13 g tetra-methyl-ammonium iodide into a beaker containing 25 mL ethanol, and then added 1.57 g of iodine. The mixture was heated gently, whilst stirring, on a hotplate until tetra-methyl-ammonium iodide, a white powder, was completely dissolved. After the mixture was allowed to cool down to room temperature, the mixture was further cooled on ice. After filtration on a Buechner funnel, washing with diethyl ether and leaving it under vacuum suction for a couple of minutes, the student recovered the product and weighed it. The mass of the obtained tetra-methyl-ammonium triiodide was 1.62 g.What is the yield of the reaction in percent [%]? For the calculation, assume that the product is completely dry and pure, so there are no impurities like side-products, unreacted educts, or solvent residues.Q1) (a) Analyze the effects of contaminants in the gravimetric analysis. (b) A raw sample of NaCl weighing 5.45 g was treated with excess of AgNO3 6.92 g AgCl is obtained. Determine the purity of the NaCl.(c) Discuss the factors which contribute to the formation of precipitate
- Plese provide a typed answer only Why is it important to know the type of solid solution formed?Why should you know the composition of the weighing form? a. So that it can be washed properly b. So that the molar mass is known c. So that it can be filtered properlyYou will analyze the residue left in the "container" in order to experimentally verify its identity. To do this, you will need three test tubes. Potassium chlorate is added to tube #1, potassium chloride to tube #2, and the residue to tube #3. These solids are all dissolved in distilled water. a. What two chemicals will then be added to each of these substances to test them? b. What will you observe if you obtain a positive test for chloride ions?
