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A protein may contain several cysteines, which may pair together to form disulfide bonds. If there is an even number n of cysteines, n/2 disulfide boons an form. Explain how many different disulfide pairing arrangements are possible?
Assuming a linear response between current and concentration, calculate the concentration of Pb(II) in the sample by (a) neglecting the information provided by the internal standard
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.808 times that of the initial number of microstates
What are the molar enthalpy and total enthalpy of the pure system when 50% and 75% have been evaporated at: (i) 30°C, (ii) 50°C? Use liquid at 25°C as a reference state
A 0.481 gram sample of an unknown acid (HX) required 28.95 mL of 0.2103 M NaOH for neutralization to the phenolphthalein end point. What is the molar mass of the acid
A benzoic acid solution was prepared by adding 0.488 g benzoicacid to a 100 mL volumetric flask and then adding enough water tobring the total solution volume to 100.00 mL.
A heat lamp produces 20.0 watts of power at a wavelength of 5.7?m .How many photons are emitted per second?
Determine how many liters 8.93 g of carbon dioxide gas would occupy at 150°C and 1.00 atm
distinguish between perfect competition monopoly on the basis of thefollowing number of sellers ease of entry and exit
A lake has a pH of 8 and the total molar concentration of nitrogen species (NH3 and NH4+) is 7.1×10-4 mol/L. what is the percentage of aqueous NH3 in the lake
Consider the fermentation of one molecule of glucose (Glc) to two molecules of lactate (Lac): Glc 2 Lac. Which of the following sets of concentrations would result in the largest release of free energy at 30°C
How many grams of FeSO4 are there in 206 grams of an aqueous solution that is 14.0 % by weight FeSO4.
isooctane a fuel used in gasoline engines because it has an antiknock octance rating of 100 has a density of 0.6919 g
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