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For a typical protein, folding can be regarded as involving two states, native (N) and denatured (D), N <--> D. At T = 300K, the change in the standard Gibbs free energy of the reaction = 42 kJ/mol. At this temperature, applying about 10,000 bar of pressure can dentature a protein. What is the molar volume change for the unfolding process?
Calculate the mass of pure silver that when heated from 12.0 degrees celcius to 15.2 degrees celcius it required 1.25 kj of energy
Assume that an incorrectly adjusted lawn mower is operated in a garage such that the combustion reaction in the engine is:
A sample of gas has a volume of 1.55 L at 35 °C and 1.05 atm. What is the pressure (in torr) if the volume changes to 1.38 L and temperature to -28 °C.
Assume the radius of a neutron to be approximately 1.0; times ;10^{ - 13} {rm cm}, and calculate the density of a neutron. [Hint: For a sphere V = (4/3)pi r^3.]
A calorimeter that contains 2500 g of surrounding water is used to measure the heat associated with the reaction of 520 g of a reactant. Calculate the energy, in joules per kilogram of reactant, associated with the reaction
When CuCN is used in the Sandmeyer reaction, the preparation is generally carried out in a neutral medium. Can you offer an explanation of why this is done?
contains air at a pressure of 171 kPa and a temperature of 293 K. How many moles of air are in it? Also, how many molecules of air does it contain?
Oxone is sometimes used in keeping swimming pool water clean. Describe using chemical reactions how Oxone keeps swiming pool water clean
Nicotine is a poisonous, addictive compound found in tobacco. A sample of nicotine contains 6.16 mmol C, 8.56 mmol H, and 1.23 mmol N ( mmol = millimol = 10-3 mol).
Silicon Carbide is a hard substance used as an abrasive. it is prepared by heating SiO2 and carbon at high temperatures SiO2 + 3C = SiC + 2 CO determine the limiting and excess reactant.
If 4.86 g of solid carbon dioxide was placed into an evacuated 2.00 L container, sealed, and then heated until it completely changed to a gas with a final temperature of 75 degrees celcius, what would be the pressure?
when burned in oxygen, yielded a mixture of CO2 and SO2 in which the number of moles of CO2 was one-half the number of moles of the SO2. How many grams of C contained in the mixture?
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