If a mixture is distilled rapidly, the separation of its compound is poorer than if the mixture is distilled slowly. Please explain why is that so using your own understanding. I don't need a copy-pasted answer from google.
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If a mixture is distilled rapidly, the separation of its compound is poorer than if the mixture is distilled slowly. Please explain why is that so using your own understanding. I don't need a copy-pasted answer from google.
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- 3. When solid sodium bicarbonate and solid hydrochloric acid were mixed together, no change was observed. When water was added to the solid mixture, bubbles formed. Explain these results.in fractional distillation, how do you tell which liquid is in which fraction and which fraction has a mix of liquids if you are trying to seperate cyclohexane and toluene?? what would the density and boiling point of the first fraction be1. You are given a substance that is equally soluble in water and hexane (two immiscible solvents). a) What is K,? b) If you start with 10 g of the substance dissolved in 100 ml of water and are given 100 ml of hexane to extract with, algebraically show that it is better to do two smaller extractions using 50 ml of hexane for each extraction than it is to do one extraction using 100 ml of hexane.
- 2. You have a solution that contains 4.0g of oxalic acid dissolved in 100 mL of water. This solution is placed in a separatory funnel, and then 100 mL of diethyl ether is added to the separatory funnel and an extraction is performed. (Diethyl ether and water are immiscible solvents.) Use the following constants to calculate how much oxalic acid is in each solvent after the extraction. Solubility of oxalic acid in water = 9.5 g / 100 mL Solubility of oxalic acid in ether = 16.9 g/100 mLList and describe two methods that can used to improve the separation of a liquid mixture by fractional distillationA mixture of ethanol, benzaldehyde and KMnO4 is mixed together. Would you expect a precipitate to form based on the reactants functional groups?
- Table 1. Solubility Tests. Functional Group Observations (specify type if any) Sample in concentrated (+/-) H2SO4 Color orange Hydroxyl group Hydroxyl group Hydroxyl group 1-butanol Color orange 2-butanol Color orange diisopropyl ether Look at the structures of compounds tested for solubility in concentrated H2SO4. What generalization can be made for a substance to be soluble in concentrated H2SO4 ?You carry out an experiment on the physical properties of 3 organic compounds and observe the following data: Substance Solubility in Water medium Compound A low Compound B high Compound C You know that the 3 organic compounds are an alkene, ketone and alcohol of equal hydrocarbon length. Match the compounds above to their specific organic compound type based upon their solubility. And give a structural reason for the solubility observations that are observed. Substance Identity Reason Compound A Compound B Compound CWhat is fractional distillation and distillation with the use of a fractionating column; how it is performed, what is the theory behind it?
- b) Will the sample be contaminated with any of the impurities? Calculate the percent purity of the initial sample (in terms of compound A) - ( i.e. express the amount of compound A in the initial sample as a percentage of the mass of initial sample). Calculate the percent purity of the final sample (in terms of compound A) - (i.e. express the amount of compound A in the final sample as a percentage of the mass of final sample). Did the recrystallization procedure result in an increase of the percent purity of compound A in the sample? Comment on the results.Pure potassium hydrogen phthalate is used for the standardization of the sodium hydroxide solution. Suppose that the potassium hydrogen phthalate is not completely dry. Will the reported molar concentration of the sodium hydroxide solution be too high, too low, or unaffected because of the moistness of the potassium hydrogen phthalate? Explain.Effect of Particle Size on the Rate of Dissolving Time required for all NaCl to dissolve Sample Results after 2 minutes shaking Do you think the size of the crystal makes a difference in how fast the salt dissolves? Explain why the differences you observed and why they happened. Effect of Temperature on the Rate of Dissolving Time required for all NaCl to dissolve Sample Observations Do you think the temperature of the water makes a difference in the rate at which the NaCl dissolves? Explain why the differences you observed and why they happened. Page 3 of 6