Match the following. Choices: Adsorbent, Absorbent, Impurity, Crystallization, Deposition, Recrystallization, 124c, Distillation, Sublimation, Condensation, 115c, 122c 1. Difference in solubility 2. Melting point of benzoic acid 3. Volatilr vs non-volatile 4. Napthalene 5. Gas -> Solid 6. Congo red 7. Activated charcoal 8. Mother liquor 9. Solid -> Gaseous state 10. Difference in boiling points
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- Types of Co-Perciptation 1- Surface Adorption 2 - Mixed Crystal Formation 3- Occlusion 4- Mechanical Entrapment explain each type properlyHow can you tell that a compound is impure? (or pure?) What are the characteristics considered when taking a melting point? What is recrystallization? What is happening on a molecular level (videos are provided) How are solvents chosen for recrystallization? (single solvent or mixed-solvent system).What are the properties of a good solvent system? How are crystals collected?What are the ideal factors to consider for ranking these glove materials for toluene exposure
- When performing arecrystallization, slocent with a boiling point less must be use than the melting point of the compound being recrystallized. For benzil ( m.p.94-95C) which solvent would be best for this recrystallization? toluene (b.p. 110C) H2O (b.p.100 C) ethane( bo -98) methanol(bp64.7)Write down the flow chart of Hand molding process for the manufacturing of suppositories? Please answer at your own words.A student performs a separation by TLC on a silica gel platee that results in three spots. A red spot is measured 23 mm away from the original sample spot, a blue spot is 42 mm away, and a yellow spot is 49 mm away. the distance from the original spot to where the solvent stopped is 55 mm. a) calculate the Rf value for each componenet in the mixture (show work and report th correct number of significant figures) b) the silica gel plate is polar. rank the three componenets in the mixture from lowest to highest polarity. Explain your answer.
- which is an active ingredient of a fumigant insecticide that turns directly from solid to toxic vapor xylene, anthracene, biphenyl, naphthaleneIdentify 5 separation processes that are used in pharmaceutical industry. Discuss how they use each separation process. Limit your discussion to not more than 5 sentences per process. Include references in your paper.Which of the following statement is false? a. Component with the strong attraction to the support move more slowly than component with weak attraction. b. Chromatography technique used to separate only colored compounds. c. On TLC, single spot does not mean or guarantee a single substance (compound). d. Iodine vapor and UV- lamp are methods used for visualization uncolored compounds.
- Melting point: 98-105 Percent yield: 60% did you successfully make pure product? Explain.When isolating the solid after recrystallization using vacuum filtration what solvent should you use to aid in the rinse from the Erlenmeyer flask to the vacuum filter funnel? (Only pick one answer) Group of answer choices: Cold ethyl acetate Cold ethanol Hot ethyl acetate Hot ethanol Hot water Cold water None of the above, it should not be risnedBased on the melting point of your impure solid, you look at the given samples and believe you havecompound A. Compound A is recrystallized using a mixed solvent system of ethanol and water. You add1 ml of hot ethanol to your sample and it doesn’t completely dissolve. You continue to add hot ethanolbut there isn’t any change. Some solid remains. What should you do next?