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An enzyme (MW = 20,25) catalyzes the hydrolysis of a newly discovered substrate. The kcat was found to be 3500 1/sec and Km = 0.05M. What is the Vmax of this enzyme when enzyme concentration is equal to 0.2mg/mL? I understand the equation to find kcat is: kcat = Vmax/[E]t however, [E]t needs to be in molarity. It sounds simple, but I am not getting how to go from 0.2mg/mL to moles/L.
Compare alkalide ion with the neutral alkali atom - For a given alkali metal, how does the ionic radius of the alkalide ion compare to that of the neutral alkali metal atom? Explain using physical arguments.
What is the relationship between coordination number, packing, and density (as mass/volume). How do the two more efficient forms of packing compare regarding volume.
if you started a ride with ice packs that held 1600g of frozen water at 0 degree celius, and the temperature of the water at the end of the ride is 32 degree celius, How many calories of heat energy were absorb
A laser pulse with wavelength 555nm contains 4.40mJ of energy. How many photons are in the laser pulse.
It is important to allow each spot added to the chromatography paper to dry completely before adding another spot.
calculate the density and # of moles of a 10% Bromine Solution used in an experiment. Does the 10% refer to v/v or g/v in solution? I used 350 ul of the Bromine Solution
Dissolving NH4NO3 in water is an endothermic process. In fact, this reaction is often used in cold packs sold at the drug store. When 23.8 g of NH4NO3 was rapidly dissolved in 79.5 mL of water in a coffee cup calorimeter,
In which conversion is an oxidizing agent required? a. CH3CH2CH2CH3
Calculate the molarity of each of the following solutions: (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution, (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution.
Calculate the equivalent weight of the unknown weak acid (g/eq). Calculate the molecular weight of the acid described in Question 1 (g/mol).
what is the phase of matter of the solute and solvent of sterling silver?
Aluminum metal dissolved in hydrochloric acid as follows: 2Al(s) + 6HCl(aq) → 2AlCl3(aq) + 3H2(g)
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