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Carbon monoxide binds strongly to the Fe2+ion of the heme group of protein myoglobin. Suppose you have at your disposal a supply of myoglobin, a suitable buffer in which to suspend the protein,12C16O,13C16O,12C18O,13C18O, and an infrared spectrometer. Assuming that (i) the atom that binds to the heme group is immobilized, (ii) the protein is infinitely more massive than either the C or O and(iii) atom isotopic substitution does not affect the force constant of the CO bond, describe a set of experiments that: (a) proves which atom C or O binds to the heme group of myoglobin, and (b)allows for the determination of the CO force constant for myoglobin-bound carbon monoxide. In your description of the experiments, tell what data you would collect and how you would interpret the data
At 29 C the average rate is 3.3 flashes every 10 seconds;at 23 C the average rate falls to 2.7 flashes every 10 seconds. Calculate the activation energy for flashing process.
can dissolve an aluminum soft-drink can in an aqueous base. 2 Al (s) + 2 KOH (aq) + 6H20 (l)---> 2KAI(OH)4(aq) + 3H(g) If you place 2.05g of aluminum in a beaker with 185 mL of 1.35 M KOH, will any aluminum remain. What mass of KAI(OH)4 is produce..
What mass of liquid water remains in the flask when equilibrium is established? The equilibrium vapor pressure of water at 55 °C is 118 mm Hg.
how would you make 100ml of a buffer with a pH =4.25, starting with 0.25 M acetic acid and 0.25M sodium acetate
A gas is collected over water at a certain temperature. The total pressure is 762 torr. The vapor pressure of water at this temperature is 17 torr.
Distinguishing the given compounds by Infrared spectroscopy, Cyclohexene and 2-hexyne both have the molecular formula C6H10
electronic transition in a hydrogen atom has a wavelength of 486.2 nm. From what initial energy level (ni) did the electron transition?
What substance is produced at the anode during the electrolysis of a mixture of molten calcium bromide, CaBr2(l), and molten magnesium iodide,MgI2(l)
A solution is prepared by dissolving 16.2 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 10.50 mL sample of this stock solution is added to 59.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
If the solubility of compound A in there at 0 degrees C is 2.0 g/100 mL and at 35 degrees C is 40.0 g/100 mL, how much ether would you use to recrystallize 20 g of A. What percent recovery would you expect.
Determine the pH of a 0.227 M C5H5N solution at 25°C. The Kb of C5H5N is 1.7 x 10-9.
Why or Why not and provide cathode-anode half reactions? How fast is the corrosion occurring?Do we have enough information to answer this question? If not, what additional information is needed?
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