When performing a distillation, the boiling point is measured: below the side arm of the distilling flask in the distillation flask, above the surface of the liquid in the receiving flask O in the boiling liquid itself
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- This refers to a point wherein both liquid phases have the same composition. Hence, extraction is not possible. Tie lines Plait point Liquidus Convergence pointDATA Note: Use the videos as references except when data is provided here. Table 1. Selection of Recrystallizing Solvent. Solvents Dissolution at room temperature? (+ or −) Dissolution at elevated temperature? (+ or −) Distilled water - - Acetone + n/a 95% ethanol - + Toluene + n/a Solid sample: Naphthalene Table 2. Mass Measurements. Mass, g Sample solid 0.5021 Empty watch glass 35.7602 Watch glass with recrystallized sample 36.2485 Table 3. Melting Point Determination. Temperature, oC Appearance of Sample in Capillary Tube … Solid 78.4 Solid 79.3 Solid with signs of liquid 79.9 Solid, liquid 80.6 Liquid, solid 81.3 Liquid with signs of solid … Liquid Theoretical Melting Point, oC: 80.2°C (176.4°F) QUESTIONS Which solvent should be used as the recrystallizing solvent? Check if your chosen solvent satisfies all characteristics of a good…Matt was heating his methanol solvent in an E. flask on a hot plate to use for recrystallization. The TAcame by and noticed he didn’t have a stir stick or boiling chip in the flask and told him to use one,please. Matt dropped a stick in the flask and suddenly the liquid exploded out of the flask. Oops! Tellme why that happened. What should he have done instead?
- A clear line came on the keyboard, and the solution is detailed with an explanationName three (3) other types of samples that can be analyzed in a typical acidimetric process.ExplainIn thin layer chromatography the initial spot is placed: A. on a pencil lineB. four centimeters from the solventC. anywhereD. Tapping the solvent to dissolve it
- While performing the formula of hydrate laboratory experiment, the lid accidently slips over the crucible to completely seal the crucible. Whould your calculated percentage water of hydration be high low or unaffected? explain your answerHow was the precipitate obtained after filtration? By scraping from the filter paper and transferring to a watch glass. By redissolving in hydrochloric acid. By drying the precipitate on the filter paper using a desiccator. By charring the filter paper and igniting the product in a crucible.Name three (3) other types of samples that can be analyzed in a typical acidimetric process.