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A drug (D) is produced in a three-stage extraction from the leaves of a tropical plant. About 1000 kg of leaf is required to produce 1 kg of the drug. The extraction solvent (S) is a mixture containing 16.5 wt% ethanol (E) and the balance water (W). The following process is carried out to extract the drug and recover the solvent.
Determine the minimum electric potential difference (in volts) that must be applied to accelerate an a-particle so that on interaction with a hydrogen atom, a ground state electron will be excited to n = 6
Combustion of Ethane: Stack Gas Molar Composition, Ethane is burned with 50% excess air. The percentage conversion of ethane is 90%. Of the ethane burned, 25% reacts to form CO and the balance reacts to form carbon dioxide
Her model indicated that if Stogy hired two rollers per week during the entire first year, inventory would stand at 2,697,000 cigars by year's end.
This is the first part of a three-part assignment: an individual assignment to research existing or emerging IT related technology and its ethical impact.
oleum or fuming sulfuric acid available commercially in concentrations ranging from 20 to 99.9 sulfur trioxide. a.
Calculate the tower height, Z, and tower diameter, D, needed so that the Z/D ratio is about 4 and at this optimum condition, what are the values of f, Tez, and air flow rate, G?
Devise a control system for this reactor, and draw up a preliminary piping and instrument diagram. The following points need to be considered:
Determine the energy needed to quench a hot gas with water, Assume we have a 100,000 cubic foot per minute gas (air) stream at 700 degrees F that goes to an air pollution control device
A fresh feed stream containing 4.0 mol% inert gas and a stoichiometric ratio of hydrogen and nitrogen is combined with a recycle stream and is fed to a system to produce ammonia according to the reaction: N2 + 3H2 = 2NH3
List two reasons why water is seldom used as a solvent in sample preparation for infrared spectroscopy.
Calculate the atomic weight (in amu) of an element (X), given the following data: 24X : 24.000 amu at 0.7879 fractional abundance 26X : 26.000 amu at 0.1017 fractional abundance 25X : 25.000 amu at 0.1113 fractional abundance
Determine the required mole fractions of the nitrogen and carbon dioxide to produce this mixture. From Chapter 17, the speed of sound is given by.
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