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As part of the process of producing sugar crystals from sugar cane, raw sugar cane juice is sent to a series of evaporators to remove water. The sugar cane juice, which is 85wt% water, is fed to the first evaporator at 10,000 lb/h. The concentrated juice out of the last evaporator is 40wt% water. First examine a system with two evaporators. Calculate the water evaporated n each evaporator, assuming that the fraction of water in the feed removed in each evaporator is the same. Then, develop a linear model of a flow sheet with N evaporators, assuming that the fractional recovery of water fr,w is each evaporator is the same and that the concentrated juice coming out of the last evaporator still contains 40wt% water.
Our simple pH meter that we have used before works on the principles deiscussed on page 829. What cell voltage would you expect from the pH probe if it is place into a beaker containing 50 mL of 1M HCl diluted with 50 mL of distilled water
The vapor pressure of a liquid chloroform, CHCl3, is 400.0 torr at 24.1 c and 100.0 torr at -6.3C , what is Hvap of chloroform
why during a GC is the boiling point for some samples higher than the final temperature used during the run yet these samples still run
Tripeptide Protein: Acidic, Basic, or Neutral? Alanine has an R-group structure of CH3, cysteine has an R-group structure of HS-CH2, and aspartic acid has an R-group structure of HOOC-CH2
What are those byproducts? to remove the byproducts from the organic phase
A quality control chemist at Dow Chemical tried to determine purity of NaOH using titration.He measured out 0.500 g NaOH sample, and dissolved it in 20 mL water. 31.2 mL of a 0.386 mol/L HCl solution was used to reach the end point.
Calculate the heat energy released when 29.0 g of liquid mercury at 25.00 C is converted to solid mercury at its melting point
If, in a certain experiment, over a specific time period, 0.0039 mol PH3 is consumed in a 1.8-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
Provide the FULL mechanisms for the reaction of these three alcohols : 1) 1- butanol 2) 2-butanol and 3) 2-methy-2 propanol with a Lucas reagent
a 1.00 L solution contains 4*10^-4 M Cu(NO3)2 and 1.6*10^-3 M ethyleneddiamine. the Kf for Cu(en)2^2+ is 1*10^20, what is the concentration of Cu+2 in the solution
if 2000 l of hard water contains 0.022 m ca2+ and 0.0070 m mg2+, how many moles of na+ are needed to replace these ions?
Predict whether a precipitate will or will not form for each of the following. In addition, determine whether the resulting solution will be saturated or unsaturated.
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