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An enzyme has a KM of 3 mM in the absence of a competitive inhibitor in a solution of 2 mM substrate and a Vmax of 15 nM/s. What concentration of a competitive inhibitor with Ki of 3 mM is required to achieve an initial velocity of 5 nM/s?
a certain monomer used in the production of polymers has one nitrogen atom and the mass composition 67.90 c 5.70 h and
acetic acid has a Ka of 1.8x10^-5. what is the pH of a buffer solution containing .15 M CH3COOH(acetic acid) and .15 M CH3COO^-?
a solution contains a mixture of pentane and hexane at room temperature. the solution has a vapor pressure of 258 torr.
the ratio of the no of molecules in the excited state at the temperature of 213 K to the number of ground state molecules and the percent of the excited molecules at 213 K.?
the power delivered to a photodetector that collects 8.0*10^7 photons in 3.8 ms from monochromatic light is 0.72 microwatt. what is the frequency of the radiation
The concentration of Fe2+ in a sample of water is 350 mmol/L At what pH will 99% of the Fe2+ be precipitated as Fe(OH)2? Ksp = 7.9 x 10-15
the normal respiratory rate for a human being is 15.0 breaths per minute. the average volume of air for each breath is
Correlation of structure with the melting point - What structural aspect of these 18-carbon fatty acids can be correlated with the melting point?
Problem- Ms. Pallor is a 24 year old graduate student at California State University. She tells you she has iron-deficiency anemia but she has no clue what it is, why she has it, or what she can do about it. You decide to take the time to provide ..
carbon monoxide will burn in air to produce co2 according to the following equation 2 co g o2 g yields 2 co2 what
rate constant for the decomposition of N2O5 to NO2 and O2 at 70 degree celsius is 6.82 x 10^-3 s-1. Suppose we start with 0.300 mol of N2O5(g) in a .500L container. What is the half-life of N2O5 at 70 degrees celsius?
Explain the mass of helium-4 atom is 6.64648*10-24g as well as each of it's two electrons has a mass of 9.10939*10-28g. Explain what fraction of the atoms mass is contributed by its nucleus
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