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32 mg of a FAD containing enzyme was found to contain 800 micrograms of FAD. This enzyme has a native molecular weight of 64 kD as well as is encoded by an 872 bp ORF. Explain what can be said regarding the protein architecture as well as cofactor content of this enzyme.
Calculate the number of grams of alcohol present in 1.00 L of 78 proof gin. The density of ethanol is 0.798 g/mL.
Pinacol (2,3-dimethyl 2,3-butanediol) gives a mixture of pinacolone (3,3-dimethyl-2-butanone) and 2,3-dimethyl 1,3-butadiene by treating with acid.
Propose a mechanism for the acid-catalyzed syntheis of 4,5-dimethyl-dioxxolane from formaldehyde and 2,3-butanediol
Calculate the pH during the titration of 100.0 mL of 0.200 M HCl with 0.400 M NaOH. First what is the initial pH (before any NaOH is added
Using Henry's law, calculate the molar concentration of O2 in the surface water of a mountain lake saturated with air at 20 ^ C and an atmospheric pressure of 665 torr. The partial pressure of O2 is .21 atm.
The solubility of nitrogen in water exposed to the atmosphere, where the partial pressure of nitrogen is 593 mmHg, is 5.3 × 10-4 M. At the same temperature, what would be the solubility of pure nitrogen, at a pressure of 760 mmHg
In tables of thermodynamic data provided in chemistry books, one finds delta Hf, delta Gf, and delta S listed. Briefly explain why the entropy data are supplied as S
an element crystallizes in a body-centered cubic lattice. the edge of the unit cell is 3.17 a and the density of the
What is the internal energy change for the gas? Give your answer in joules (J), accurate to three significant figures.
A sample of the unknown complex is analyzed and has an absorbance of 0.528. What is the molar concentration of Cu^2+ ions in the unknown solution?
Water is added to 25.0 mL of a 0.776 M KNO3 solution until the volume of the solution is exactly 500 mL. What is the concentration of the final solution.
an aqueous solution has a vapor pressure of 84.0 at 50 . the vapor pressure of pure water at this temperature is 92.6 .
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