If a steam distillation is carried out using 10 grams of caraway seed, what is the typical weight essential oil of caraway that should be expected? (Give a range of weights)
Caraway fruit usually contain 1-6% of their total weight as essential oils, this means that the least you would get from 10 grams is 1% of 10 grams: 0.1 grams and the maximum would be 6% of 10 g, which is 0.6 g. The expected range would then be:
0.1 - 0.6 g of essential oil.
If a steam distillation is carried out using 10 grams of caraway seed, what is the...
In a steam distillation, what is the purpose of grinding the caraway seeds? What would be the outcome of the experiment if the caraway seeds were used whole?
What is the advantage of using steam distillation to isolate essential oils, as opposed to solvent extraction followed by direct distillation of the resulting oil?
Question 6 (10 pts) Steam distillation can be run more efficiently in some cases using super-heated steam at 1 atm pressure rather than boiling water. By increasing the temperature of the steam beyond the boiling point of water in a controlled fashion, the oil may still be protected from degradation while increasing its contribution to the vapor composition, making the process more efficient. At 150 °C, linalyl acetate exerts a vapor pressure of 93 torr. If a steam still were...
What would the ratio be in grams between bromobenzene and water if a steam distillation was performed to purify bromobenzene? Bromobenzene vapor pressure is 120 Torr at 95 °C (temperature of steam distillation containing water/bromobenzene. No additional tables were provided to us for this question. The question was proposed solely as listed above.
1) What is the greatest hazard posed by using a steam distillation apparatus? 2) If you spill diethyl ether in your eyes, what should you do? 3) What is the greatest hazard posed by using steam? Synorimont
1. A student carried out a simple distillation on a compound known to boil at 124°C and reported an observed boiling point of 116°-117°C. TLC comparison of the product showed that the compound was pure, and a calibration of the thermometer indicated that it was accurate. What procedural error might the student have made in setting up the distillation apparatus? 2. Which method is better for purifying a mixture of two liquids that boil at nearly the same temperature: simple...
1. Margaret carried out an experiment with a plant food that contained 0.31 grams of phosphate, PO. What mass of MgNH PO.6H O precipitate should she obtain? 2. Use dimensional analysis to convert 3.45 grams of phosphorus to grams of P2Os
What are the means and standard deviation, and conclusion?
PART THREE - SEED WEIGHT IN MAIZE th the high-lysine opaque-2 line ration. Get four packets of 10 kernels, line (P), and the F and F2 An inbred line of maize was crossed with the high-lysin and the cross carried out to the F2 generation. Get four packets one each for the inbred line (P.), the opaque 2 line (P2), and th generations. Record the weights of the kernels in the...
Assume that the double-slit experiment could be carried out with electrons using a slit spacing of bb = 10.0 nmnm. To be able to observe diffraction, we choose λλ = bb, and because diffraction requires reasonably monochromatic radiation, we choose Δp/pΔp/p = 0.0100. part A What electron momentum would give a position uncertainty of 2.59×10−10 mm ? part B What is the ratio of the wavelength and the slit spacing for this momentum?
Stiochiometrically imbalanced polyesterification was carried out with mol of adipic acid and1mol of 1,10-decanediol. What monomer conversion should be reached to obtain Xn (number-averaged degree of polymerization, DP) 14? (10 points)
Stiochiometrically imbalanced polyesterification was carried out with mol of adipic acid and1mol of 1,10-decanediol. What monomer conversion should be reached to obtain Xn (number-averaged degree of polymerization, DP) 14? (10 points)