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Molecules can be as small as a few atoms or as large as thousands of atoms. In 1962, Max F. Perutz and John C. Kendrew were awarded the Nobel Prize for their discovery of the structure of hemoglobin, a very large molecule that transports oxygen from the lungs to cells through the bloodstream. The chemical formula of hemoglobin is C2952H4664O832N812S8Fe4. Calculate the formula mass of hemoglobin.
Max Perutz and John C. Kendrew won a Nobel Prize in 1962 for determining the structure of hemoglobin by X-ray diffraction. Compute generated model of hemoglobin.
A polypeptide is completely hydrolyzed, then reacted with PITC, followed by amino acid chromatography. What information is obtained
Determine E° for the reduction half-reaction Ce4+(aq) + e- → Ce3+(aq), given that the cell voltage for the following voltaic cell is E°cell = 1.887 V:
A solution is made by mixing 46.0 mL of ethanol, C2H6O, and 54.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C
What are the roots for x in this quadratic equation? 2 x2 - 7 x + 0.5 = 0 The larger root is (use 3 significant figs) The smaller root is (use 3 significant figs)
Ammonia reacts with oxygen according tot he following equation: 4NH3+5O2=4NO+6H2O deltaHrxn = -906kJ Calculate the heat (in kJ) associated with the complete reaction of 155g of NH3.
What is the molality of a solution prepared by dissolving 10.0 grams of methylamine, CH3NH2, in 50.0 mL of ethanol, C2H5OH?
Percent Mass and Stoichiometry, You are the science officer on the Starship Enterprise. The ship is circling a new planet. The away team comes back with some rocks and minerals
flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 10.0 mL of 0.220 M NaOH. 1. what volume of NaOH is needed to reach the end point of the titration?
In this experiment you will measure the heat of combustion (delta Hc) of naphthalene. Report the values of the following: Cv, the heat capacity of the system.
A mixture of 0.160 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0 L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO? 3C + 2O2---> 2CO +CO2
What functional group is a: double bonded O that is single bonded to another O and single bond CH3
Calculate the de Broglie wavelength of an neutron moving at 1% the speed of light. Calculate the velocity of a neutron with a wavelength of 75pm.
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