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Calculate the pH of a solution prepared by mixing 50mL of a 0.10 M CH3NH2 solution with 25mL of a .20M HCl solution. (Kb CH3NH2 = 4.4 x 10^-4)
Calculate the Ki for a competitive inhibitor whose concentration is 6.5 x10-5 M that increases the Km of the substrate by 24.5%.
Construct a detailed sequence of rxn to synthesize meso-1,2,-dichlorocyclopentane as the major substrate product, starting with (1R,2S)-2-bromocyclopentanol as the subtrate.
Calculate the number of ATPs generated from the metabolic oxidation of the four carbons of acetoacetyl-CoA to CO2. Now consider the homolog derived from oxidation of an odd numbered carbon chain
Acid strength decreases in the series HI > HSO4- > HF > HCN. Which of these anions is the weakest base?
What is the molar concentration of methanol in the mixture? Give answer in M, 2 significant digits, do not write down the units.
Determine the minimum mass of Sodium bicarbonate or sodium hydrogen carbonate that should be added to the spill to neutralize it?
What is the molarity (M) of the concentrated HClO4 solution?
Patients suffering from respiratory disorders are often treated in oxygen tents in which the atmosphere is enriched in oxygen. What is the partial pressure of O2 in an oxygen tent consisting of 45% O2 for an atmospheric pressure of 753 mm Hg?
The product of the complete hydrolysis contained 1.8 mg of the compound shown below, and no other 2,4-dinitrophenyl derivatives of the ?-amino groups of other amino acids could be found How many polypeptide chains are in this protein?
The standard molar enthalpy of vaporization for water is 40.79 kJ/mol. What mass of steam is required to release 500. kJ of energy upon condensation? (Molar mass of water is 18.02 g/mol.)
Which of the following compounds would you expect to be ionic?
Calculate the freezing point of a solution of 23.4 grams of benzoic acid (C6H5CO2H) dissolved in 613 grams
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