The melting point of the sample assigned to your group matches the melting point of a sample assigned to another group in the class within a 4 oC difference. How can one find out if both groups were assigned the same sample?
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The melting point of the sample assigned to your group matches the melting point of a sample assigned to another group in the class within a 4 oC difference. How can one find out if both groups were assigned the same sample?
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- 2. The goal behind suction filtration is to remove soluble impurities that are on the surface of the crystals. Therefore, why can't you simply use suction filtration instead of recrystallization to purify an impure solid?Differentiate between simple distillation and fractional distillation. Please elaborate.You were tasked to separate the components of a mixture containing silica, sodium chloride and charcoal. TNāCI dissolves in water while silica and charcoal are not water-soluble. Only charcoal dissolves in carbon disulfide. a. Write a short experimental procedure to carry out the separation of the mixture. b. Given the following data, determine the percentage of charcoal, sodium chloride and silica. Mass (g) Mass of beaker 100.000 Mass of beaker + mixture 110.000 mass of evaporating dish 62.000 mass of evaporating dish + solid after evaporation of water 65.000 Mass of beaker + charcoal + silica after evaporation of excess water 117.000 mass of beaker + silica after decanting dissolved charcoal and drying 113.545
- Which is better fractionating distillation or simple distillation?Part D: Volatiles. A 1.232 gram sample of copper complex weighed 0.783 g after heating. What is the percent of volatile material in this sample? If the sample contains 17.4% ammonia, what is the percent water in the sample?General Chemistry 4th Edition McQuarrie • Rock • Gallogly Consider the data in the table. Compound HF University Science Books presented by Macmillan Learning Melting point (°C) AHfus (kJ/mol) Boiling point (°C) AHvap (kJ/mol) -83.11 4.577 19.54 25.18 HCl -114.3 1.991 -84.9 17.53 HBr -86.96 2.406 -67.0 19.27 HI -50.91 2.871 Using the data in the table, calculate ASfus and ASvap for HCl. ASfus = ASvap = -35.38 21.16 Determine the entropy change when 6.10 mol HCl(g) condenses at atmospheric pressure. AS = J/(K. mol) J/(K⚫ mol) J/K
- 1. Explain how distillation works in separating simple mixtures. 2. Differentiate simple distillation and fractional distillation. 3. What is an effective way of preventing irregular ebullition or bumping of the mixture during distillation?Give some advantages of steam distillation over simple distillation.Enter a balanced equation for the reaction between aqueous lead (II) nitrite and aqueous lithium bromide to form solid lead (II) bromide and aqueous lithium nitrite. Express your answer as a chemical equation. Identify all of the phases in your answer. ΑΣΦΑΛΟ ?
- Discuss some applications of simple distillation and steam distillation. Explain why you can use each method for the chosen applicationHow could melting point be used to determine if a compound is the same or different if the melting point is the same?Compare and contrast simple and steam distillation in terms of the type of mixtures separated by each technique.