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Question: Ethylene oxide is produced by the oxidation of ethylene over a catalyst. Safety consideration dictates that the gaseous mixture entering the reactor should contain 10 mol air per mol ethylene. The conversion per pass is 22%. The ethylene oxide formed is completely condensed out and the remaining gases recycled. Make up oxygen is added to maintain the requisite oxygen levels. For a plant producing 440 kg/h of ethylene oxide,
1) Calculate the quantity of pure make up oxygen to be supplied, (in kg/h), in steady state operation.
The relevant reaction is represented by 2C2H4 + O2 → 2C2H4O
When hydrogenating methyl trans-cinnamate or dimethyl fumurate using 5% Pd/C at room temperature, how will you determine if the reaction is chemoselective
If 545 mL of oxygen gas is collected at 21°C and 745 mmHg , what is its volume at STP?
The heat of combustion of CH4 is 8904 kJ/mol also the heat capacity of H2O is 75.2 J/mol×K. Determine the volume of methane measured at 298 K and 0.790atm needed to convert 1.33L of water at 298 K to water vapor at 373 K.
Binds to the DNA strand at a specific sequence of the gene called a promoter
Question-If you wish to transfer 40 moles of NaOH into a barrel, and the only source is a 4.0 M solution of NaOH, how many liters of this solution would you need to pour into the barrel
List all the ionic species present (before any solution occurs) when the following solutions are mixed together: Ni(NOsub3)sub2(aq) and CaClsub2(aq)
Sunlight causes the following reaction to take place in the atmosphere: NO2(g) NO(g) + O(g). Calculate the standard enthalpy of the reaction from the following information and from additional information in Appendix 2A
Approximately 35 mg of a dried brass sample (accurately measured) is put into a 250-mL Erlenmeyer flask. About 20 mL of H2O and 10 mL of concentrated HNO3 is added.
Ethyl aceto acetate is first treated with sodium ethoxide using EtOH then reacted with 1,4 dibromo 2butene
An Arrhenius plot (ln k vs. 1/T) for a second order reaction produced a straight line with a slope of -6.81e+03 K. What is the value of the Arrhenius pre-exponential if k = 3310 M-1 s-1 at 640 K
the following interactions can contribute to the intrinsic binding energy during enzymatic catalysis? Choose all that apply.- hydrogen bonding
How many grams of methanol must be added to 7.50kg of water to lower its freezing point to -15.0^circ C? For each mole of solute, the freezing point of 1 {rm kg} of water is lowered 1.86 ^circ {rm C}
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