Chemistry, 21.08.2019 18:20 draveon6925
One thousand kg h-1 of a 35 wt% acetic acid-in-water solution is to be extracted with pure isopropyl ether supplied at a rate of 2,000 kg h-1 . (a) calculate and compare the percentage recovery of the acetic acid from the aqueous phase feed stream for the following arrangements: i) single-stage contact ii) cross-flow (successive) four (4)-stage contact with equal proportions of the ether solvent fed to each stage. (b) if the separation is to be carried out using a continuous counter-current extraction cascade, how many equilibrium stages will be required to achieve the same degree of acid recovery as that found in a (ii) above? (c) what minimum solvent rate would be required to yield the same raffinate composition as in (b)? (d) if an existing counter-current extraction column of six (6)-equilibrium stages is used, what would be the percentage recovery of acid achieved?
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Chemistry, 21.06.2019 22:00
Which produce would best increase the amount of heat energy that is actually gained by calorimeter b
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Chemistry, 22.06.2019 15:20
Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.
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Chemistry, 22.06.2019 18:00
Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
Answers: 3
One thousand kg h-1 of a 35 wt% acetic acid-in-water solution is to be extracted with pure isopropyl...
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