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Suppose that you precipitate a protein with 1 M (NH4)2SO4 and that you wish to reduce the concentration of the (NH4)2SO4. You take 1 ml of your sample and dialyze it in 1000 ml of buffer. At the end of dialysis what is the concentration of (NH4)2SO4 in your sample? How could you further lower the (NH4)SO4 concentration?
What is the color of most salts containing the copper (II) ion. the color of most salts containing the cobalt (II) ion. the color of most salts containing the nickel (II) ion
Calculate the enthalpy change per mole for this process. ( Assuming C=4.18 J deg c^-1 g^-1 and density of the final solution is 1.00g/ml).
the phosphorylation of 2 moles of ADP to ATP and has a deltaG= -135 kJ/mol. What is the deltaG for the conversion of glucose into lactic acid?
Sims Inc. earned $1.00 per share in 2000. Five years later, in 2005, it earned $2.00. What was the growth rate in Sims' earnings per share (EPS) over the 5-year period?
2Na + 2H2O → + H2 How many moles of hydrogen gas are produced when 0.066 mole of sodium is completely reacted?
a sample of a binary compound of boron and chlorine weighing 2.842 g occupies .153 L. this sample is decomposed to give 0.664 g solid boron and enough gaseous chlorine to occupy .688 L at the same temperature and pressure. determine the molecular ..
When the equation above is balanced and all coefficients are reduced to their lowest whole-number terms, the coefficient for O2
a gas has a volume of 25 ml when its pressure .056 atm what will the volume of the gas be at the pressure of 1.00 ?
What is the pH of a 1.2 x 10-4 M solution of KOH? What is the hydronium concentration of this solution?
A student follows the procedure for his experiment and burn a peanut. The peanut weighed 0.780 g before combustion and 0.054 g after combustion. The temperature change of an aluminum can be filled with 200 mL of water was 15.3 degree Celsius. (Den..
Calculate the change in Gibbs free energy for each of the following sets of delta H, delta S and T. Predict whether or not the reaction will be spontaneous at temperature indicated.
Compound A has the molecular formula C14H25Br and was obtained by reaction of sodium acetylide with 1,12-dibromododecane. On treatment of compound A with sodium amide
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