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The turnover number for an enzyme is known to be 5,000 min-1. From the following set of data, calculate the Km and the total amount of enzyme present in these experiments. Substrate concentration (mM) 1 2 4 6 100 1,000 Initial velocity (µmol/min) 167 250 334 376 498 499 (a) Km = about 2mM. (b) Total enzyme = 0.1 µmol.
What is the change in internal energy (in J) of a system that absorbs 0.588 kJ of heat from its surroundings and has 0.219 kcal of work done on it?
If the sign for delta G is negative (spontaneous process) and the sign for delta S is positive (more disorder) for both dissolving processes, how could one be endothermic (positive delta H) and one be exothermic
Calculate the equilibrium constant Kp for synthesis of HCl at 298 H2+Cl2------>2HCl
Conversion of aqueous formaldehyde to methylene glycol? Assuming that you have formaldehyde, CH2O, fully solubilized in water at a temperature of 200 degrees F, is the first order and natural reaction
An unknown element forms a yellow ion, XO . It forms a precipitate with silver ions. If 48.0 mL of a 0.250 mol/L solution of silver ions is added to a solution of the unknown ion, 1.856g of a red-brown precipitate are formed. Determine the iden..
what is the molarity of an aqueous solution containing 360g of glucose in 2.0L of solution.
What is the value of Kc for the decomposi- tion of ammonium carbamate into ammonia and carbon dioxide?
What is the percent ionization of a solution made by adding 6.00 grams of CH3COOH to 100 g of water (Kb = 0.512 ?C/m) if the boiling point of the solution is 100.712 ?C? Answer in units of %.
A 2.85 g sample containing only MgO and CuO is placed in a 3.00 L container. The container is filled with CO2 to a pressure of 740 torr at 20 degrees C. After the reaction has gone to completion, the pressure inside the flask is 390 torr at 20 deg..
The pressure and colume are simultaneously increased so that at every instant P and v are related by the equation, P = Av, where A is a constant.
5 ml of 0.05 M CuSO4 solution was mixed with 5 ml of 3 M NH3 solution.Calculate [Cu2+] in equilibrium with Cu(NH3)4^2+. Experimentally the cell potential was found to be 0.387
Write the expression for the reaction rate in terms of d[NOCl]. c. The concentration of NOCl drops from 0.580 M to 0.238 M in 8.00 min. Calculate the average rate of reaction over this time interval.
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