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Heterogeneous catalysts that perform hydrogenation reactions are subject to poisioning which shuts down their catalytic ability. Compounds of sulfur are often poisons. Suggest a mechanism by which such compounds might act as poisons.
What is the change in total pressure within the chamber following the reaction? Assume a constant temperature throughout the process.
A) A saturated solution of metal hydroxide, M(OH)2, has a pH of 10.05. Calculate the molar solubility and the Ksp for this metal hydroxide. M(OH)2 (s) M2+ + 2OH- (aq) B) What is the molar solubility of this metal hydroxide in 0.10 M M(NO3)2
A sample of iron absorbs 67.5 J of heat, upon which the temperature of the sample increases from 21.5 celcius to 28.5 celcius. If the specific heat of iron is 0.450 J/g-K, what is the mass (in grams) of the sample
Knowing the pH and the value of [H4SiO4(aq)], what is the value of [H3SiO4-(aq)] when the pH=7.0? and when pH=10.0?
Draw the kekule structure of each of the following compounds. if cis/trans isomers exist, draw both and indicate the geometry of each. Also draw the structure of a constitutional isomer.
What is the lowest possible energy (in electron volts) of an electron in hydrogen if its orbital angular momentum is 2?
Calculate the average translational kinetic energy (sometimes just called average kinetic energy) for one mole of gas at 385 K.
Calculate the osmotic pressure of a solution containing 18.55 of hemoglobin in 13.7 of solution at 24. The molar mass of hemoglobin is .
A second-order reaction that destroys compound A via the reaction A to B is occurring in a batch reactor. It is 40% complete after 30 minutes. Determine the rate constant, and the time required to achieve 95% completion?
A reaction has a rate constant of 0.0810 sec-1, how much of the compound (in mol/L) is left after 0.752 min, if there was 0.303 mol/L at the start
What is the barometric pressure exerted in pascals of a column of CHCl2Br (density = 2.451 g/cm3) 501.6 mm in height
Calculate the vibrational partition function of CS2 at 500K given the wavelength 558 cm-1 (symmetric stretch), 397 cm-1 (bend; two modes), and 2097 cm-1 (asymmetric stretch)
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