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Q: molar mass
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Q: [H30*] (M) [ОН] (М) pOH pH Acidic or Basic а. 0.0059 b. 12.00
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What is the purpose of the wash with water using separatory finnel? Bicarbonate?
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- What is the purpose of washing the crude product with petroleum ether before filtration?Give at least three characteristics of chloroform that make it a good extracting solvent for the alkaloid.What is the reason for using as little ethanol as possible to dissolve the crude product (aspirin) before recrystallization?
- What was the drying agent used after the organic layer was separated? Group of answer choices MgSO4 Na2SO4 CaCl2 Ca(OH)2What is the purpose of drying the organic layer with a drying agent like anhydrous magnesium sulfate?Why must the stopper be removed from the separatory funnel before the lower layer is removed? Please print or write in text, I can't understand crusive
- To purify benzil crystals and get rid of any leftover traces of benzoin, what would be the best solvent to use for recrystallization?Why does the Sudan III reagent form colored droplets with coconut oil?1. What is the reason behind the portion-by-portion evaporation of DCM in the extraction of eugenol? 2. Enumerate some pharmaceutical and medical uses of eugenol 3. What does the ferric chloride test identify? Is it specific test for eugenol? Why or why not?
- 1. What is the Victor-Meyer test? Describe how it is performed including reagents and describe the results. Use equations if possible. 2. Differentiate between wine and liquor. 3. In what test/s are the paraffins and benzene similar?1. Basically, when is glass stoppered buret used? ______________________________ ____________________________________________________________________ When is rubber stoppered buret used? ____________________________________ ________________________________________________________________________________________________________________________________________ When is a PTFE buret used? _________________________________________________________ _ _________________________________________________________________________________ 2. Describe the recommended method for the manipulation of a buret stopcock during titration. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 3. Why is it necessary to completely fill the rubber tubing of the stopcock with the…In the aspirin synthesis experiment, what is the reason for using as little ethanol as possible to dissolve the crude product before recrystallization?