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Using the Dumas method set-up, and eperiment was conducted using acetone ( MW=58.08). The mass of the empty 250ml flask is 351.74 g it was filled with 25 ml of the volatile acetone and coverd with an parafilm. with a small pinhole. It was heated and alter on sealed sealed after the liquid is fully evaporated. The heated flask weigh 354.4. What is the sealing temperature?
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- What is the Molecular weight of a certain volatile liquid which is placed in 225 g flask which has total capacity volume of 252.17 mL. After the liquid was heated to 96.7 oC the gass volatilized and the weight of the flask measure 227.33g. What is the could be the MW of the volatile sample?A solution containing 100 lbm KNO 3/100 lbm H 2O at 80°C is fed to a cooling crystallizer operated at 25°C. Slurry from the crystallizer (KNO3 crystals suspended in saturated solution) is fed to a filter, where the crystals are separated from the solution. Use the solubility data in Figure 6.5-1 to determine the production rate of crystals (lbm/lbm feed) and the solid-to-liquid mass ratio (lbm crystals/lbm liquid) in the slurry leaving the crystallizer.In a solid - liquid extraction process operated according to the principle of continuous reverse current, the oil of a nutrient will be extracted with pure hexane. A mixture containing 7000 kg of inert solid, 1500 kg of oil and 500 kg of hexane enters the process per hour. The upper stream leaving the total stage contains 65% hexane and 35% oil by weight. A total of 85% of the oil in the inlet current will be recovered. The underflow is constant at N=2.0 kg inert solid/kg solution; a. Find the amount and composition of the output current
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- A single effect evaporator is used to concentrate 10 000 kg / hr of tomato juice from 5% total solids to 30% total solids. The juice enters the evaporator at 15 ° C. The evaporator is operated on Steam (80% quality) at 143.27 kPa. The vacuum in the evaporator allows the juice to boil at 75 ° C. The specific heat of the dilute material is 4.1 kJ / (kg ° C) and the concentrate product is 3.1 kJ / (kg ° C). Count it (a) Steam demand rate = Answer kg / hour. b. Steam economy when condensate temperature is released at 75 ° C. = Answer (kg of water evaporated / kg of steam)Table 1 below shows the data for the filtration of fruit juice to produce clarified fruit juice at 298.2 K. Table 1: Total volume of filtrate collected at certain time V * 103 (m3) t (s) 0.5 17.3 1.0 41.3 1.5 72.0 2.0 108.3 2.5 152.0 3.0 201.7 The filtration process was conducted at a constant pressure of 46.2 kN/m2. The area of the plate-and-frame the press was 0.0439 m2, and the pulp concentration was 23.47 kg solid/m3 filtrate. a) Convert the data in Table 1 into a graph. You can either use Excel or graph paper. Your graph should be self-explanatory. b) Using the graph in (a), estimate the specific cake resistance and the resistance of the filter medium to filtrate flow.The aqueous solution of acetic with a flow rate of 1000 kg/hr contains 30% acetic acid by mass and will be extracted in a countercurrent multistage process with pure isopropyl ether (IPE) to reduce the acetic acid concentration in the final raffinate phase (LN) to 2% by mass. a) Calculate the minimum solvent flow. b) Determine the theoretical number of steps required when using a solvent of 1.5 minimum solvent flow rate. c) Determine the number of theoretical steps using the McCabe-Thiele method. Chart. Acetic acid (A)-Water (B)-isopropyl ether (IPE) (C) LIQUID-Liquid Balances at 1 atm pressure and 293 K Water layer (%) Water (B) Isopropyl ether layer (%) Water (B) 0.6 Acetic acid (A) IPE (C) Acetic acid (A) IPE (C) 98.8 1.2 99.4 99.3 98.9 0.69 98.1 1.2 0.18 0.5 1.41 97.1 1.5 0.37 0.7 2.89 95.5 1.6 0.79 98.4 91.7 1.9 1.0 97.1 6.42 13.30 25.50 36.70 1.9 93.3 4.82 11.40 2.3 84.4 71.1 3.4 3.9 84.7 71.5 21.60 31.10 58.9 4.4 6.9 58.1 48.7 10.6 10.8 45.1 37.1 44.30 46.40 16.5 36.20 15.1…