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If Barnase is a two-state protein that is denatured in guanidium hydrochloride (GdnHCl). Barnase is 50% unfolded in 3 M GdnHCl, but 99% folded in 0.03 M GdnHCl. If 3 M solution of Barnase is diluted by a factor of 100 (that is to 0.03 M) it is observed to reach its new equilibrium in 12 minutes. Explain what is the folding rate constant of this protein.
two engineers are calculating the molecular weight of a gas mixture containing oxygen and other gases. one of them uses
How does Le chatliers principle explain the effect of adding dry ice on a reaction of water and CO2 with sodium stearate
What wavelength radiation (nm) must be used to eject electrons from chromium metal with a velocity of 1.50 x 10^6 m/s? The ionization energu of chromium metal is 7.00 x 10^-19 J
Find the standard enthalpy of formation of ethylene, C2H4(g), given: heat of combustion = -1411 kJ/mol, Hf [CO2]= -393.5kJ/mol, Hf [H2O]= -285.5kJ/mol
Calculate the volume of 6.00 M NaOH that can be added to a buffer composed of 0.160 mol CH3CHOHCO2H and 0.179 mol CH3CHOHCO2- in 500 mL water before the buffer capacity is exceeded.
A water sample contains 118mg/L of bicarbonate ion, 19mg/L of carbonate ion, and has a pH of 9.5. What is the alkalinity of this water expressed as mg/L of CaCO3? Answer: 130mg/L as CaCO3.
at equilibrium, it was found that the concentrations were: .0584M for H2, .0195M for N2 and .430M for NH3. What was the initial concentration of ammonia
Silver has an atomic radius of 0.144 nm, an atomic weight of 107.87 g/mol and a density of 10.49 g/cm3. Determine whether it has a BCC or an FCC crystal structure.
Reaction rate laws are frequently used to investigate reaction mechanisms. Would your results to this experiment be consistent with either or both of the following mechanisms?
Calculate the final temperature of 34mL of ethanol initially at 20celcuis upon absorption of 739 J of heat. (density of ethanol =0.789g/mL )
What is the solubility product constant for Ag3PO4 if 6.37 mg of Ag3PO4 can be dissolved in 850 mL of water?
explain why the rf values changed when the eluant was changed from 100 petroleum ether to a 955 mixture of petroleum
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