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At 500 K in the presence of a copper surface, ethanol decomposes according to the following equation. C2H5OH(g) CH3CHO(g) + H2(g) The pressure of C2H5OH was measured as a function of time and the following data were obtained. Time (s) PC2H5OH (torr) 0 250. 100. 237 200. 224 300. 211 400. 198 500. 185 Since the pressure of a gas is directly proportional to the concentration of gas, we can express the rate law for a gaseous reaction in terms of partial pressures. Using the above data, deduce the rate law, the integrated rate law, and the value of the rate constant, all in terms of pressure units in atm and time in seconds. Predict the pressure of C2H5OH after 900. s from the start of the reaction. [Hint: To determine the order of the reaction with respect to C2H5OH, compare how the pressure of C2H5OH decreases with each time listing.] Rate Law: Integrated Rate Law: Rate Constant: Pressure of C3H5OH
The second car is of European manufacture, costs$21,700, and has a rated mileage of 19km/L. If the cost of gasoline is $1.25/gal and if the cars actually deliver their rated mileage, estimate how many miles you would have to drive for the lowest f..
What is the pH of 0.20 M NaCl 2. what is the pH of 0.20 M NH4NO3 3. What is the pH of 0.20 M NaCH3COO
Show the step by step reaction mechanism for the SnAr2 reaction of 2,4-dinitrochlorobenzene and an amine. Explain why the nitro groups are important.
Strong base is dissolved in 615 mL of 0.400 M weak acid (Ka = 4.50 × 10-5) to make a buffer with a pH of 3.95. Assume that the volume remains constant when the base is added.
What volume (mL) of the solvent H2O should be added to 136 mL of the solute CH3OH to make a solution that is 1.12 parts per hundred by mass CH3OH. (in ML)
compound a is c4h9cl and shows two 13c nmr resonances. compound b is an isomer of compound a it shows four 13c nmr
Which of the following is a neutralization reaction?
What is the freezing point in of a solution prepared by dissolving 4.80 of in 110 of water. The value of for water is 1.86 , and the van't Hoff factor for is = 2.7.
If the molecular mass of a gas increased by a factor of 4 at constant temperature, its rms speed will decrease by a factor of 2.
When heated, cyclopropane is converted to propene. Rate constants for this reaction at 470 deg C and 510 deg C are k= 1.10 x 10^-4 and k2=1.02 x 10^-3. Determine the activation energy.
At 0.0 degrees C, if the volume of air is 2.5 mL and the pressure of the atmosphere that day is 805 mmHg, what is the number of moles of air.
Why does bromine add faster to a disubstituted double bond than a monosubstituted double bond to produce dibromides
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