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Why should you use a minimum amount of water to rinse the conical vial while transferring the purified acetaminophen to the Hirsch funnel?
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- What made the pepper above the water move upon the addition of the dishwashing liquid?Before combining the oil and water phases when making moisturising lotion, the emulsifiers (Glyceryl stereate and Polysorbate 80) must be dissolved in either the oil or the water phase depending on their solubility properties. Decide in which phase each or both the emulsifiers must be dissolved and What type of emulsion (o/w or w/o) will this formulation form? Give a reason for your answer.What are the analyses or instruments that are used to verify or confirm if the extracted substance is indeed caffeine?
- Why should you use cold water to rinse the acetaminophen in the Buchner funnel?What is the difference in the solubility of benzoic acid and sodium benzoate in water and explain which of them will be more soluble in chloroform.What is the importance of ethyl alcohol and talc in the Concentrated Peppermint Water preparation?
- 1. How many phases did you observe when the naphthalene and p-dichlorobenzene were dissolved? What does this mean? 2. What did you observe with the freezing point of naphthalene when you added p-dichlorobenzene?What happens chemically during the saponification process when you add heat to the soap reaction mixture (be specific about what happens in the reaction mixture containing glycerol tristearate, NaOH base, and ethanol as it gets refluxed).What are the answers for these questions? 1.Why is it necessary that the oil bath/water bath is stirred while heating?2.Why are there bubbles escaping from the open end of the capillary tube during boiling?3.What is the importance of collecting more than one drop of the liquid sample from the burette?4.Based on the boiling point and surface tension values obtained, which of the two liquids has stronger IMFA?