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Calculate the Ki for a competitive inhibitor whose concentration is 4.5 x10-4 M that increases the Km of the substrate by 23.5%
Calculate ?H° for each of the following reactions using the data in Appendix 4: 4Na(s)+O2(g) ? 2Na2O(s) 2Na(s)+H20(l) ? 2NaOH(aq)+H2(g) 2Na(s)+CO2(g) ? Na2O(s)+CO(g) Explain why a water or carbon dioxide fire extinguisher may not be effective inpu..
Find the pH of a solution after 0.10 mol of HCl is added to 1.0 L of a buffer solution that contains 1.40 M NH3 and 0.90 M NH4+.
The unknown has peaks at 2818.38, 2716.12, 1682.14, 1622.34, 1491.16,1450.65, 1359.99, 1304.05, 1188.30,1014.69, 925.95,883.51, 758.19, 698.39.
why glucose had a faster reaction with an unknown sugar oxidase than fructose did based on the structure of both fructose and glucose.
how many ml of concentrated sulfuric acid would be required to mae 1 L of 0.2N solution
A certain reaction has an equilibrium constant of 300 at 25 degrees celsius and 309 at 35 degrees celsius. What is deltaH^0 per mole for this reaction
The first equivalence point was at 7.59mL and the second equivalence point was at 14.91 mL. My calculated pKa1 is 2.01 and pKa2 is 5.71. What is the molarity of the maleic acid
If the partition coefficients for the DCM/water and DCM/bicarbonate systems were different, what was the reason
Due to oxygen consumption by the above reaction, the dissolved oxygen concentration in the water is only 2 mg/L. What is the maximum amount of energy that an organism could obtain by oxidizing 1 µmol of the organic matter
The solubility of benzaldehyde in dichloromethane is 5 g per 100mL. What mass of benzaldehyde can be recovered by extraction with 3x 50 mL portions of dichloromethane
a plutonium-239 atom may emit a photon of light with a wavelength of 24.0 pm when it undergoes nuclear fission. What is the frequency of this radiation?
the threshold wavelength for potassium metal is 564 nm. what is its work? what is the kinetic energy of electrons ejected if radiation of wavelength 410 nm is used?
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