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Consider the production of ethanol from acetylene and water at 355 K and 1 bar by the following reaction
C2H4 1 g 2 1 H2O 1 g 2 dS C2H5OH 1 g 2
(a) If the feed contains an equimolar mixture of reactants, calculate the equilibrium conversion.
(b) Would the yield of ethanol produced per mol of acetylene fed increase if the feed ratio was changed to 10 1 H2O C2H5OH? Explain.
(c) Another strategy to increase the yield is to increase the pressure to 10 bar. Comment on what would happen in the system if you tried this approach.
The nitrite ion (NO2-) is commonly determined by a colormetric procedure using a reaction called the Griess reaction. Im this reaction the sample containing nitrate is reacted with sulfanilimide
In the recrystallization procedure, an Erlenmeyer flask is commonly used during the step in which the crude is dissolved in the solvent of choice. Furthermore, if the recrystallization is slow typically the flask is closed with a cork.
Explain why the fluoride ion of the terabutylammonium flouride is more nucleophilic than the fluoride ion of sodium fluoride. Draw reaction-energy diagrams. Define the term, "diastereospecific reaction," and give a representative example.
Alpha helices are a type of secondary structure in proteins. What is the length of a 41-kDa single-stranded ?-helical protein segment. Assume a mean residue mass of 110 Da.
calculate the heat released when 176g of water at 23.0 degrees celsius are converted to ice at -10.0 degrees celsius?
what happend of the particles of the substance in the cup (i) when it is a liquid; (ii) as it begins to evaporate; (iii) when the last bit of liquid has just evaporated.
A vapor composed of 0.45 mole fraction ethanol and 0.55 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.
What Mass of K2CO3 must you add to 125 grams of water to prepare a 0.200m K2CO3? What is the mole fraction of K2CO3 in the resulting solution?
Calculate the density of the radiator liquid. Based on the calculation, is the density of ethylene glycol greater or less than that of water
Synthesis of Fragrant Esters
the heat of fusion of water is 6.008x103 jmol at its normal melting point of 272.15k. calculate the freezing point
The equilibrium constant is 100. Calculate the concentrations of O2 present at equilibrium
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