9. Boiling stones are added to the liquid to: a. accelerate purifying. b. catching impurities. c. prevent bumping. d. no one of above. 10. If corrosive chemicals are spilled on your skin wash with: a. suitable solvent. b. alcohol. c. water d. no one of above.

Q: What are two characteristics of good recrystallization solvent for given compound

A: Recrystallization is the most important process to purify the non volatile solvent.

Q: For the liquid acetone, list all IMFs that have to be broken in order for it to mix with water

A: Solubility depends upon the polarity of the solvent. A polar solvent will be dissolved in the polar…

Q: if you isolate more than one crop of crystal what must you do before combining them. (related to…

A: A widely adopted method in purifying compounds is recrystallization. In this method, the pure…

Q: What is the best technique for pushing down on the plunger to carefully form a drop? Select the most…

A: To decribe the best technique for pushing down the plunger to carefully form a drop.

Q: Compound A is impure and has a melting point of 90°C - 98°C. After purification, A will most likely…

A: The melting point is a characteristic physical property of a solid. The temperature at which a solid…

Q: g) You have to wash the crystals with ice- cold solvent. Would you use ethanol as the washing…

A: The question is based on the concept of recrystallization technique. It involves  separating…

Q: How do you filter benzoic acid in water through the apparatus?

A: The process which is used to purify the impure compound from a solvent is known as recrystallisation…

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A: Solvent used in recrystallization should have below properties: At high temperatures, it should be…

Q: A) the possible methods to purify cyclohexene from cyclohexanol and other materials produced in the…

A: Purification of Cyclohexene from cyclohexanol  can be done via these following ways -  First one is…

Q: When finished performing a vacuum distillation it is important to?

A: Vaccum distillation is a type of distillation allows the purification of compounds not readily…

Q: How is recrystallization of an impure solid accomplished?

A: Recrystallization is a technique used for the purification of a solid from impurities.

Q: For liquid water list all IMFs that have to be broken for it to mix with acetone

A: liquid water mix with acetone

Q: Why should the spatula used for spooning solid chemicals from a reagent bottle be clean and dry?

A: If it is not clean and dry  ,you will contaminate the reagent. We were always taught to never to put…

Q: For either of these solvents explain why it would be a better choice as a recrystallization solvent…

A: Recrystallization is a technique used to purify compound. For recrystallization, dissolving both…

Q: Write an equation that explains what happens if a scientist working in the laboratory spills an…

A: Nylon 6, 6 is a polyamide formed by the condensation reaction of adipic acid (HOOC-CH2- CH2-…

Q: Arrange the ff. into the correct order of recrystallization: a. prepare hot solution b. slow…

A: Concept - Recrystallization is a technique used to purify solid compounds. Solids tend to be more…

Q: GUIDE QUESTIONS 1. What type of precipitate is BaSO4? 2. Why is a filter paper preferred over a…

A: As per our guidelines only three questions can be answered . Kindly post the remaining questions…

Q: When choosing a recrystallization solvent, what properties must be considered? a. Its boiling…

A: The solvent should boil in the range 50–120°C. Impurities should either be insoluble in the hot…

Q: why would ethanol (solvent) be used in recrystalization?

A: Recrystallization is a process used to purify the solid substances by dissolving them in a liquid.…

Q: "Cold filtration" is used during recrystallization to: Select one: a. Remove insoluble impurities O…

A: Cold filtration is the rapid filtration where solution is cooling then filtrate. When the solution…

Q: The glassware which is attached to the condenser to allow proper flow of distillate to the receiving…

A: Borosilicate

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Q: Occasionally you will have solid impurities “trash” in your heated recrystallization solvent. How do…

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Q: You found two bottles in the laboratory labeled X and Y. The instructor said that these bottles…

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Q: You have completed your recrystallization process, but you did not get any crystals back after you…

A: Recrystallization is a process which is used to purify the compounds. The principle behind…

Q: After a recrystallization experiment, the crystals were dried very well. The melting point…

A: According to the question, after a recrystallization experiment, the crystals were dried very well.…

Q: of sodium chlorate? holes of sodium chlorate?

A: a) Sodium chlorate : NaClO3  Balanced equation,  2NaClO3(s) -----> 2NaCl(s) + 3O2(g)

Q: The triple point is at point? The melting point temperature of OHM is ?  OHM will exist as ? if…

A: Concept- Triple point- Temperature at which substance will exist in all three phases (solid, liquid,…

Q: When you use a balance to weigh a reagent, you should weigh onto: -a filter paper. -the top of the…

A: Practical of any subject can help us to gain better knowledge of that particular subject specially…

Q: PLEASE HELP WITH THIS , CLEAR DRAWING AND SOLUTIONS WOULD BE APPRECIATED

A:

Q: Just prior to drying an organic layer with a drying agent, you notice water droplets in the organic…

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Q: Calculate the theoretical yields of: Isobornyl acetate IsoborneolCamphor

A: The term theoretical yield of a given substance can be defined as the amount which is predicted by…

Q: why is distillation an ideal choice to purify cyclohexene from cyclohexanol instead of other…

A: Distillation is used to separate a mixture when the boiling point difference between the…

Q: Moving forward in different labs we will not be telling you what solution to prime your filter paper…

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Q: Fill in the blanks: During the "salting-out" process in an extraction procedure, the replaces the

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Q: Question: How to get rid of colored impurities in the recrystallization process? Explain that in…

A: Recrystallization is a chemical purification process. By dissolving all impurities and a compound in…

Q: Recrystallization and Melting Points Why do you need to heat a sample slowly when taking a melting…

A: Interpretation: We need to tell why we heat sample slowly during determination of melting point.

Q: I need help with those

A: Given: Some of reactions are given  To find: Molecularity and rate expression for the given reaction…

Q: To avoid drawing air bubbles into your pipet, you should. Select one: Use a pipet bulb instead of a…

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Q: What happen to the glowing wood splint when it is inserted inside the test tube?

A: Given,          Glowing wood splint is inserted into a test tube     Required,…

Q: What is the purpose of washing the crude product with petroleum ether before filtration?

A:

Q: It is important to pre-wet the filter paper before filtering your sample. Which statements about…

A: One important step in the procedure for filtration using filter paper is to pre-wet the filter paper…

Q: 9. Just prior to drying an organic layer with a drying agent, you notice water droplets in the…

A: If water droplets are present in organic layer, so to remove it from organic layer you have to add…

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: Explain which hydrolyzed component will be positive in the Br2 water test. (Refer to image)

A: Alkenes can be defined as the organic compounds that contain carbon and hydrogen atoms in a…

Q: There are many opportunities during a recrystallization to lose crystals. How could you improve your…

A: Interpretation-  How we can improve the percent recovery of recrystallization to lose crystals .…

Q: The rotovap works to efficiently evaporate solvents by

A: Rotovap can work to efficiently to evaporate solvents by  1. Reducing the pressure to lower the…

Q: Describe the procedure of how to collect and dry your newly recrystallized compound.

A: Recrystallization is the method that is used to purify the organic compounds. It involves the…

Q: Coarse Dispersion What will be the results after you reconstitued a cefixime 60 ml a powder for…

A: A question based on colloidal solution, which is to be accomplished.