Suppose you have a mixture of saturated aqueous sodium chloride (brine) and your 2-bromo-2-methylbutane product in a separatory funnel. Use densities to predict which phase will be the top layer in the funnel.
Q: How can you make a final dilution of 10-10 using 5 dilution tubes? Show and outline your entire step
A: Please find the below attachment.
Q: A mixture is 10.0 mole% Methyl alcohol, 75.0 mole% ethyl acetate, and 15.0 mole% acetic acid.…
A: Number of moles of a compound is equal to the ratio of given weight of the compound to the molecular…
Q: Which one answer does NOT represent a characteristic of a good recrystalli solvent? 1) Should not…
A: Recrystallization is the process of purification of an impure substance by the use of a suitable…
Q: In this lab you will utilize the separation method called extraction to "extract" limonene from the…
A: In this lab you will utilize the separation method called extraction to "extract" limonene from the…
Q: In glucose estimation using Benedict's Reagent, briefly explain what would happen if the water…
A: In the quantitative estimation of glucose using the quantitative Benedict's reagent, the solution is…
Q: Propose an alternative method for purifying the product today. Briefly describe how you would…
A: The solution of the question is given below: No. of moles can be calculated by = given mass / molar…
Q: A mixture containing ethanol (bp: 78 °C), acetone (bp: 56 °C), and ether (bp: 36 °C) undergoes…
A: To find: The true statement from the below a. Acetone is more volatile than ethanol but less…
Q: Why is methanol chosen as the solvent for recrystallization? A. Because it can easily be boiled…
A: Solvent used in recrystallization should have below properties: At high temperatures, it should be…
Q: 2-propanol and water are mixed in three different ratios in this experiment to test the effects of…
A: 1.) The ratio of given for propanol/H2O is 2:3 so we can assume the volume of propanol is 2x and…
Q: Imagine your original mixture had contained a component capable of sublimation, such as naphthalene.…
A:
Q: Suppose you have a mixture of saturated aqueous sodium chloride (brine) and your…
A: The substance whose density is high remain as bottom layer while with lesser density remain as top…
Q: . Any organic solvent waste generated in this experiment should be collected in your fume hood and…
A: Organic solvents may be Carcinogenic, Toxic, corrosive, radioactive material, explosive. If we…
Q: Organic solids are best purified by a. recrystallization b. vacuum distillation c. fractional…
A: Purification of organic compounds can be done by various methods namely distillation method,…
Q: Why is an aqueous cream and procaine solution unstable and subject to cracking
A:
Q: During heating, some solution of NaCl splattered out of the evaporating dish. How would this affect…
A: Given: During heating, some solution of NaCl splattered out of the evaporating dish.
Q: Chemistry why cant 99% ethanol be obtained from aqueous ethanol by simple distilation? Can it be…
A: The mixture of ethanol and water forms an azeotropic mixture, which is also known as a constant…
Q: Differentiate simple and steam distillation. (minimum of 5 sentences)
A: Distillation is process which involve the conversion of a liquid into vapour that is condensed back…
Q: 10. Describe how you can decide whether your recrystallized trphenylmethanol is pure or not ?
A: Triphenylmethanol is an organic white crystalline compound. It is insoluble in water and petroleum…
Q: Why ethanol is added to the residue in the distillation flask Why is this important
A: liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This…
Q: We perform a 1.0 mL 2-methyl-2-butanol alcohol dehydration by simple distillation also using H2SO4.…
A: A question based on analytical separations that is to be accomplished.
Q: Assume there is confusion as to the nature of a liquid that is being distilled off from 1,4…
A:
Q: Melting point: 98-105 Percent yield: 60% did you successfully make pure product? Explain.
A: A question based on IR spectroscopy, which is to be accomplished.
Q: Q2. What does “crude” product mean? Q3. What is the advantage of using Buchner filtration in…
A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…
Q: Each of the student statements below is wrong. Explain why they are not correct. (a) All my…
A: The dissolution of a known amount of a solute to a solvent produces a solution of know…
Q: A. Test for Unsaturation To 3 drops of toluene add 3 to 4 drops of 1% potassium permanganate…
A:
Q: Crystal seeding
A: In this question we have to explain if there is no recrystallization due to the unsaturation of the…
Q: 1. 6-hydroxy-1-naphthoic acid is soluble in 5% NaOH and soluble in 5% NaHCO3. 2. The addition of…
A: 6-Hydroxy-1-napthoic acid has the following structure where we find that there is one carboxylic…
Q: In a few sentences summarize your results for odor, solubility, acidity and the FeCl3 test for the…
A: Odor= a) rotting garbage smell B) pungent alcoholic C)camphor like D)camphor like
Q: Some organic solvents do not work well in liquid-liquid aqueous extractions. Ethanol (HOCH2CH3) is a…
A: As we know ethanol is polar in nature, and by the law like dissolves like. Ethanol is more miscible…
Q: Using aqueous hydrochloric acid, sodium bicarbonate, or sodium hydroxide solutions, devise a…
A:
Q: Classify these solvents as either protic or aprotic solvents.
A: A protic solvent is a compound containing at least one hydrogen atom bonded to anelectronegative…
Q: When a pure sample of tert-butyl bromide is analyzed by gas chromatography, two components are…
A: (a) The gas chromatography conditions do not have any reactive molecules that can react with the…
Q: What are you looking for specifically when doing the microscale boiling point? What causes the…
A: A liquid boils when its vapour pressure equals to the atmospheric pressure. Boiling point of a…
Q: Pinacl-Pinacole lab What visual criterion is to be used to assess whether the crude reaction product…
A: Pinacol pinacol rearrangement is a type of rearrangement which occurs in geminal diols and…
Q: 5. When the ether is dissolved, add 10 grams of NaCl and shake gently until all the NaCl dissolves.…
A: Principle of Solvent extraction: When an organic compound which can be asolid or liquid, is present…
Q: Cite one factor that affects percent yield during recrystalization.
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: what is the role of methanol for extracting chlorophyll? What molecular force holds your…
A: Chlorophyll is a fat soluble hydrophobic compound. Methanol is hydrophobic solvent. Methanol is a…
Q: Which of these can be rinsed down the sink? the left over liquid from a distillation of 1-butanol…
A: The correct answer is Option (4) None of them should go down the sink.
Q: What is different about steam distillation
A:
Q: 10. Consider the following table of compound and their solubility in hot and cold water, and in hot…
A: A question based on solutions that is to be accomplished.
Q: At the end of your experiment, left over reagents should be disposed of in a(n) Regular garbage…
A: At the end of your experiment, left over reagents should be disposed of in an
Q: For this chemistry problem, I am stuck on what the reactants and products are in order to determine…
A: (a)Product A is Cu(NO3)2 and it reacts with NaOH giving Cu(OH)2. The reaction between Cu(NO3)2 and…
Q: (extraction, reactive extraction, recrystallization). Write a few sentences for each technique…
A: Please find your solution below : Isolation of organic compound is a process in which individual…
Q: Which of these can be rinsed down the sink? the left over liquid from a distillation of 1-butanol…
A: The process of separation of two compounds on the basis of differences in their boiling point is…
Q: 1. Pure compounds have higher (and sharper) melting points than compounds that contain impurities.…
A: Melting point depends on the intermolecular forces of attraction to a greater extent. Pure crystal…
Q: Draw a five-step Schematic diagram of the procedure on how to separate pure crystals of CuSO4 , Alum…
A: Answer - CuSO4 - Copper(II) sulfate, also known as copper sulphate, are the inorganic compounds…
Q: In the aspirin synthesis experiment, what is the reason for using as little ethanol as possible to…
A: We have to see some condition before we recrystallize our compound like,. The solvent should not…
Q: What process is required to purify the ethanol from the fermented broth? Extraction Distillation…
A:
Q: (5) Hexanes and ethyl acetate are the two components used to modulate solvent composition. Draw the…
A: Introduction: Polarity depends on the number of polar bonds present in the molecule. The greater…
Q: Write an equation to show how you could recover the parent compounds from their respective salts (1,…
A: Given salts,
4. Suppose you have a mixture of saturated aqueous sodium chloride (brine) and your 2-bromo-2-methylbutane product in a separatory funnel. Use densities to predict which phase will be the top layer in the funnel.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- You have learned three different types of distillation (simple, fractional, steam). For each case below, explain which type of distillation would be most efficient in terms of time and separation. A. Separating 1-butanol from its constitutional isomer 2-butanol B. Separating limonene from lemon peel C. Separating ethanol from ethylene glycolwhich of the following statements regarding purification by recrystallization is false? i. activated charcoal removes insoluble impurities. ii. water is the best recrystallization solvent for organic compounds. iii. slow cooling permits the exclusion of the solvent from the recrystallized solid. a. i, ii, and iii b. i and ii c. i only d. ii and iiiwrite an equation for this lab and explain the observations that would occur: measure out 10 mL portion of 10% sodium sulphate into a clean test tube. Add 8 drops of 50% sulphuric acid and swirl. Count the number of drops (swirl after each drop) of 30% calcium chloride needed to produce a precipitate of calcium suplhate.
- you weigh your crude sample (1.538 g) and recrystallize with hot isopropanol. How do you know how much isopropanol to add?Part B: Miscibility of liquids 1. Place 10 drops of propan-2-ol into each of two DRY semi-micro test tubes. 2. Add 10 drops of water to one test tube and 10 drops of cyclohexane to the other test tube, shake and observe whether the two liquids in each test tube are miscible. Record your results then discard the contents of the test tubes into the organic waste container. 3. Place 10 drops of water in a clean semi–micro test tube and add 10 drops of cyclohexane to it. Record whether the two liquids are miscible. If two layers form (i.e. the liquids are immiscible) add a drop of blue food dye to the mixture and shake, then allow the two layers to reform. Based on your observation, decide whether the food dye is more soluble in water or cyclohexane and then discard the mixture into the non–halogenated waste container. Record whether the combinations of liquids shown below are miscible. Water Cyclohexane Propan-2-ol CyclohexaneAssume that your compound recrystallizes equally well from benzyl alcohol and isopropyl alcohol. Which solvent is the better choice for recrystallization? a. Benzyl alcohol because it is miscible with water. b. Isopropyl alcohol is better because it has a much lower boiling point and is easier evaporate off c. A mixed solvent - benzyl alcohol and isopropyl alcohol d. It doesn't matter which one if they work equally in the recrystallization process.
- Determine which solvent is best for distinguishing the following pairs of chemicals based on their anticipated solubility. Per compound pair, select a single solvent. A. beta-naphthol and butyric acid B. anthracene and benzylamine10. Describe how you can decide whether your recrystallized trphenylmethanol is pure or not ?Q2. What does “crude” product mean? Q3. What is the advantage of using Buchner filtration in filtering crystals? Q4. Briefly explain how scratching the wall of the glass flask can help formation of crystals. Q5. Briefly explain why crystals form as the solvent cools during recrystallization.
- A. Test for Unsaturation To 3 drops of toluene add 3 to 4 drops of 1% potassium permanganate solution and shake. Give the results. B. Take 10 drops of toluene and add 2-3 drops of a solution of bromine in carbon tetrachloride until a faint color is obtained. Divide the solution into two separate vials. Expose one vial in sunlight, and keep inside your locker the other. Cover both vials. Compare their appearance after 10 minutes. Interpret the results. Give the equation. C. Demonstration (to be performed inside the hood) Take 2 test tubes and to each add 5 drops of liquid bromine. To one test tube, add a pinch of a halogen charrier (iron fillings). To both test tubes, add 3 drops of toluene. Expose a moist blue litmus paper to the fumes. Describe and interpret the results. Give the equationYou've just synthesized a new molecule and need to purify it by recrystallization. You find that it is poorly soluble in water and highly soluble in ethanol, even when cooled in ice. What solvent should work in this situation? a. water b. Recrystallization from any solvent is impossible. c. methanol d. a solvent mixture - water and ethanolFill in the blanks. For the first one it is an example on how to do it .