Which of the following liquid mixtures can be best separated using simple distillation? A. Dimethyl sulfoxide (b.p. 189°C) from ethylene glycol (b.p. 195°C) В. Propanol (b.p. 97°C) from water (b.p. 100°C) C. Isopropanol (b.p. 82.3ºC) from water (b.p. 100°C) D. Toluene (b.p. 110°C) from hexane (b.p. 69°C) B.
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- The best liquid mixtures for separation by simple distillation need to have boiling points that differ by at least ___________ oC. 10 20 30 401. What characteristics must a substance possess for it to be separated from a heterogeneous mixture by steam distillation? 2. Explain the role of steam in facilitating the distillation of essential oils. 3. Compare and contrast simple and steam distillation in terms of the type of mixtures separated by each technique. 4. What is/are the difference(s) between a simple distillation and steam distillation?A mixture of these four liquids are separated using a fractional distillation: toluene, boiling point = 111 oC; acetone, boiling point = 56 oC; benzene, boiling point = 80 oC;and methanol, boiling point = 65 oC. Which liquid will distill off first? Toluene Benzene Methanol Acetone
- When a solution of 1.00 g of ‘X’ in 100 ml of water was shaken with 10 ml of diethyl ether, 0.60 g of X was transferred to the solvent (ether) layer. When another solution of 0.5 g of ‘X’ in 100 ml of water was shaken with 5 ml of petroleum ether, 0.3 g of X was extracted by the solvent. Which of these ethers is a better solvent? Justify your answer using calculations.Simple Distillation The temperature was 76o C when the first drop of distillate was collected. Liquid was collected and the temperature gradually rose to 124 o C. Fraction 2 was taken when liquid was distilling at 124o C. Fractional Distillation The temperature was 77o C when the first drop of distillate was collected. Liquid was collected until the temperature reached 78 o C, then the temperature dropped. The temperature of the hot plate was increased and a second fraction of liquid was collected at 126 o C. a.) Based on the boiling points observed when the fractions were collected, what is the identity of the unknown compound isolated in fraction 1 and Fraction 2?in fractional distillation, how do you tell which liquid is in which fraction and which fraction has a mix of liquids if you are trying to seperate cyclohexane and toluene?? what would the density and boiling point of the first fraction be
- Assume that your compound recrystallizes equally well from benzyl alcohol and isopropyl alcohol. Which solvent is the better choice for recrystallization? a. Benzyl alcohol because it is miscible with water. b. Isopropyl alcohol is better because it has a much lower boiling point and is easier evaporate off c. A mixed solvent - benzyl alcohol and isopropyl alcohol d. It doesn't matter which one if they work equally in the recrystallization process.Why is fractional distillation more efficient than simple distillation when purifying liquid mixtures?The solubility of compound B is 59 g per 100 mL in boiling methanol and 30 g per 100 g in cold methanol, while its solubility in water is 7.2 g per 100 mL at 95oC and 0.22 g per 100 mL at 20oC. What solvent would be better for recrystallization of the compound? Explain
- Compare the simple distillation of pure hexane and binary mixture of hexane and toluene to that of a fractional distillation?I’ve done this question but I think I’ve done it wrong. Calculate how much 95% Ethel alcohol will be prepared to dissolve 0.3g of sulfanilamide at 78 degrees using the table (pictured below from my textbook) and, based on that volume, calculate how much sulfanilamide will remain dissolved in the mother liquor after the mixture is cooled to 0 degrees. For the volume at 78 I got 1.47mL and for the difference once it cooled to 0 degrees I got 19.96 mL. If I got these wrong could you point me in the right direction as how to solve this? Thank you!A binary mixture of benzene and toluene containing 57.47 mol% benzene is continuously distilled. The distillate contains 90.40 mol% benzene, while the bottom product contains 86.96 mol% toluene. What molar flow rate of the bottom product will correspond to 183.11 mol/h of the distillate product? Type your answer in mol/h, 2 decimal places.