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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.
how many molecules of oxygen gas are needed to react with 4.2 moles of C3H8O?
If 200 mL of 0.300 M Cr(NO3)3(aq) is added to 100 mL of 4.0 × 10^-4 M NaF(aq) at 25 degrees celcius, will a CrF3 precipitate form? For CrF3 in water at 25°C, Ksp = 6.6 × 10^-11.
1.664 g of a solid white acid are dissolved in water and completely neutralized by the addition of 45.37 mL of 0.580 M NaOH. Calculate the molar mass of the acid, assuming it to be a monoprotic acid.
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum:
Determine the expression for the rate of reaction with respect to each of the reactants and products
An 8 g of SO3 was placed in an evacuated container where it decomposed at 600 degrees Celsius. At equilibrium, the total pressure and density were 1.8 ATM and 1.6 g/L. Calculate constant pressure.
A compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
A system conducts 238 cal of heat to the surroundings while delivering 331 cal of work. what is the change in internal energy of the system (in cal).
The next question was this: "What is the PH at it's equivalence point? AS part of your answer, define equivalence point. What does it mean for a substance to be at its equivalence point?"
A piston has an external pressure of 8.00 torr How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.450 liters.
Volume after mixing is 131mL. Kf=1.86 C/m -- Kb=0.512 C/m Calculate the freezing point and boiling point?
Tripeptide Protein: Acidic, Basic, or Neutral? Alanine has an R-group structure of CH3, cysteine has an R-group structure of HS-CH2, and aspartic acid has an R-group structure of HOOC-CH2
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