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In a study of the gas phase decomposition of nitrogen dioxide at 383 °C
NO2(g)--->NO(g) + ½ O2(g)
the concentration of NO2 was followed as a function of time.
It was found that a graph of 1/[NO2] versus time in seconds gave a straight line with a slope of 0.761 M-1 s-1 and a y-intercept of 2.55 M-1.
Based on this plot, the reaction is _______(zero/first/second) order in NO2 and the rate constant for the reaction is _________M-1 s-1.
In a study of the gas phase decomposition of phosphine at 120 °C
PH3(g)---->1/4 P4(g) + 3/2 H2(g) the concentration of PH3 was followed as a function of time.
It was found that a graph of ln[PH3] versus time in seconds gave a straight line with a slope of -2.86×10-2 s-1 and a y-intercept of -2.35.
Based on this plot, the reaction is _______(zero/first/second) order in PH3 and the rate constant for the reaction is ____________ s-1.
Chromium metal can be produced from the high temperature reaction of Cr2O3 with aluminum by the following equation: Cr2O3 + 2Al ----> 2Cr + Al2O3. Calculate the number of grams of aluminum required to prepare 159g of chromium metal
At a given temperature the vapor pressures of benzene and toluene are 183mm Hg and 59.2mm Hg. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenzene=0.600
An X-ray photon of wavelength 0.962nm strikes a surface. The emitted electron has a kinetic energy of 944eV. Find binding energy.
a compound with empirical formula c2h2n dissolved its 0.0800 gram in 10.00 g of c6h6 freezing point of resulting
A sample conaining both HCl and HNO3 had a density of 1.083g/ml. A 30.00 ml amount of this sample required 25.78 ml of 0.3248 M NaOH for titration. Another 30.00 ml amount of this sample required 24.47 ml of 0.1327 M AgNO3 for titration
Calculate the nuclear binding energy per mole of nuclei of and the binding energy per mole of nucleons for 31P. The required masses (g/mol) are: 1 1H = 1.00783; 1 0n = 1.00867; 31 15P = 30.97376
A mixture of 2.00 moles of H2, 3.00 moles of MH3, 4.00 moles of CO2, and 5.00 moles of N2 exert a total pressure of 350kPa. What is the partial pressure of each gas?
O2 gas is held over a container of water. If the total pressure of the gas mixture is 10.2 atm, what is the concentration of dissolved He in the water?
How many grams of magnesium metal will react completely with 6.3 liters of 4.5 M HCl? Show all of the work needed to solve this problem.
19.) Acrylonitrile is polymerized via which pathway? a) cationic b) anionic c) coulombic
The first ionization energy of lead (Pb) is 716 kJ/mol. If a Pb atom is ionized using a photon of ultraviolet radiation having an energy of 1.987E-18 J, what is the amount of leftover energy that goes into the kinetic energy of the ejected electro..
Which of the following has a dipole moment. A) CO2 B) BCl3 C) BrF3 D) more than one of these E) none of these
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