What was the composition of the distillate in Fraction B which was collected in the middle of the distillation of 50/50 ethanol/1-butanol (volume at 34 -36 mL)?
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- Heptanet-4-hione LA predicted solubility (with a reason) in the following representative solvents/solvent systems H20, Dilute HCI, Dilute NazCO3, Dilute NaOH, ELOH; acetone; CHCIB; Hexane.You were given a mixture of two miscible solvent A and B that you are tasked to separate. You know that solvent A has a boiling point of 49 oC while solvent B has a boiling point of 174 oC. Which of the listed method would overall be the most efficient? Fractional distillation Recrystallization Solid-liquid extraction Liquid-liquid extraction Simple distillation Acid-Base extractionIt was found that solubility of benzoic acid in water at differont temjperatures Was aceording to the follewing tuble. Tc 6 0 40 30 Logs 1.20 Jimol 1.415 1.58 1.77 calculate tne Valux of the chanye in enthalpy graphically?
- 1. Describe the preparation of 500mL of 0.500M KMNO4 from the solid reagent. 2.Describe the preparation of 500mL of 4.75% (W/V) aqueous ethanol (C2H5OH, 46.1g/mol).Hexanoic acid was added to an immiscible biphasic solvent system, water and CCl4 at 20.0OC and the equilibrium concentrations of hexanoic acid were determined to be 3.66 g/L in H2O and 67.0 g/L in CCl4. Caluclate the distrubution coeffiecent (D2) of hexanoic acid in water with respect to CCl4.C. Fractional Distillation SAMPLES °C at which vapors are collected Distillate Methanol + Ethanol 65 Hexane + Acetone 56 2-propanol + 2-Butanol 82
- What method of separation would you use to isolate compound B from an ether solution containing a mixture of the two compounds below? OH A B Extract with base, isolate the aqueous layer, neutralize with acid, filter the precipitate and dry Extract with acid, isolate the aqueous layer, neutralize with base, filter the precipitate and dry Extract with base, isolate the organic layer, dry with magnesium sulfate, and evaporate the solvent Extract with acid, isolate the organic layer, dry with magnesium sulfate, and evaporate the solvent Extract with base, isolate the organic layer, neutralize with acid, filter the precipitate and dry Extract with acid, isolate the organic layer, neutralize with base, filter the precipitate and dry4-bromobenzoic acid (1.0 g) is dissolved in 20 ml dichloromethane. After addition to a separatory funnel, the dichloromethane solution is treated with 20 ml 3.0 M NaOH solution. After the layers are separated, which layer(s) will contain an organic compound (non-solvent)? What would happen if the aqueous layer is treated with 20 ml 3.0 M HCl?STARTING WITH 18ML OF 2-methyl-2-butanol
- describe the procedure of 2.00 L of 0.120 M HClO4from the commercial reagent [71.0% HClO4(w/w), specificgravity1.67].What would the % yield of ester be if the reaction were simply allowed to equilibrate (i.e. no products are removed)? C3H7OH+C2H5COOH=C6H12O2+H2O Percent yield of ester was 71.6% weight of product= 20.7868g 19.0mL (0.25mol) of n- propanol 18.5 mL (0.25 mol) of propionic acid At room temperature, the equilibrium constant, Keq is approximately 3.The compound 1-chloropropane immediately formed a white precipitate when Nal in acetone was added. What is the identity of the white precipitate? O NaCI O 1-chloropropane O Nal O Sodiumchloropropane