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While ethanol CH3CH2OH is produced naturally by fermentation, e.g. in beer- and wine-making, industrially it is synthesized by reacting ethylene CH2CH2 with water vapor at elevated temperatures. A chemical engineer studying this reaction fills a 100 L tank with 45. mol of ethylene gas and 34. mol of water vapor.
When the mixture has come to equilibrium she determines that it contains 26. mol of ethylene gas and 15. mol of water vapor.
The engineer then adds another 23. mol of ethylene, and allows the mixture to come to equilibrium again. Calculate the moles of ethanol after equilibrium is reached the second time. Round your answer to 2 significant digits.
a coal-burning power plant generates electrical power at a rate of 500 megawatts that is 500 x 10 to the 6th power pr
Calculate delta g rxn and e cell for a redox reaction with n=3 that has an equillibrium constant of K
Using paper chromatography, a student separated a dye spot into three components, A, B, and C. The components traveled 4.2 cm, 5.7 cm, and 8.0 cm,. respectively from their initial position on the strip
Problem- Above what Fe2 concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 8.11? The Ksp of Fe(OH)2 is 4.87Ã-10-17.
Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [HCl]eq = 0.13 M, [HI]eq = 5.6 × 10-16 M, [Cl2]eq = 0.0019 M.
The hottest temperature yet recorded in Phoenix AZ was 122 dgrees F what is the temperaturein degrees C and K
A sample of gas inside a 150 mL piston has an initial temperature of 550 K and pressure of 8.0 atm. As the piston expands to 650 mL, the pressure decreases to 1.5 atm.
Explain what are the possible consequences of having water mixed with the hexane-titration sample in? Would the presence of hexane modify the results of the water-titration in Titrating the Water Layer
Confirm that the z-component of orbital angular momentum is a basis for an irreducible representation of A2 symmetry in C3v.
Br2 (g) + 3F2 (g) ? 2BrF3 (g) Explain what volumes of Br2 and of F2 measured at the same temperature also pressure are needed to prepare 50.0mL of BrF3
There is always a degree of uncertainty in any measurement. How does the use of significant digits reflect this uncertainty
The reaction absorbs approximately 326 J/g of ammonium nitrate. To lower the temperature of 220. g of water by 20.0°C, how many grams of ammonium nitrate would you need to dissolve?
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