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Q: What is the purpose of the wash with water using separatory finnel? Bicarbonate?
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A: To study the kinetics of iodination of acetone, starch is used as an indicator just before the…
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Q: how many hydrogen bond acceptors are there in pantoprazole?
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A: Given : Mixture of solvents To find : Solvent that elute the Compound fastest and slowest .…
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A: Given is recrystallization of benxoic acid.
Q: What will be needed for resting a separatory funnel when it is charged (meaning in use)? O beaker…
A: Introduction: We have to tell what will be required for resting a separating funnel.
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Q: What impurity was likely removed during the recrystallization necessary ?
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Q: Crystal seeding
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Q: What property determines which layer is on top or bottom in an extraction?
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Q: Briefly, discuss reflux and why it is commonly used in organic chemistry.
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Q: At the end of your experiment, left over reagents should be disposed of in a(n) Regular garbage…
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Q: Write the principle behind reflux technique. 2)The role of recrystallization of dibenzalacetone
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why is it necessary to turn the separatory funnel upside down and to open the stopcock?
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- Different type of methods used in household contaminated wastewater purificationB) How the softening of tap water is carried out?6) Multiple Choice Question At which position should you keep the solution level of reaction mixture against the level of the silicone oil bath when performing a reflux procedure? The solution level of the reaction mixture should be higher than that of the silicone oil bath level The solution level of the reaction mixture should be lower than that of the silicone oil bath level The solution level of the reaction mixture should be the same as the silicone oil bath level It does not matter
- Subparts 4-5 this is not a graded question.how many hydrogen bond acceptors are there in pantoprazole?Identify the characteristics of a good recrystallization solvent. Select one or more: Dissolves a chemical sample well at high temperatures. Is not an organic liquid with a low boiling point. Does not dissolve a chemical sample well at high temperatures. Does not dissolve a chemical sample well at low temperatures. Dissolves a chemical sample well at low temperatures.
- Which one answer does NOT represent a characteristic of a good recrystallizing solvent? O 1) Should not react with sample. O 2) Should do a poor job of dissolving impurities when hot. O 3) Should have a moderate boiling point. O 4) Should do a good job dissolving a sample when cold.Why is the glucose assay one of the most common analytical test performed in clinical chemistry.The density of the first fraction collected would be expected to be close to a value of ______. 1.00 g./mL 0.895 g/mL 0.789 mL 0.950 g.mL
- Can you describe the main pathways (ingredient class or method) for modifying the rheological properties and adding viscosity / yield to a surfactant cleansing system (shampoo)? What would you be doing to the micelle and why would it thicken?Why should the spatula used for spooning solid chemicals from a reagent bottle be clean and dry?Give some advantages of steam distillation over simple distillation.