SDS-PAGE electrophoresis, and isoelectric focusing
1) Considering the SDS gel results, is mutant I a result of an exchange of one amino acid for another or loss or gain of one or more amino acids? 2) Considering the SDS gel results, is mutant II a result of an exchange of one amino acid for another or a loss or gain of one or more amino acids? 3) Considering the IEF gel result ...continues
Acid -base properties of a salt
(a) Identify the acidic hydrogen atom in the structure above. (b) In one stage of purification, the organic extract of the crude penicillin G is treated with a buffer solution at pH = 6.50. What is the ratio of P- to HP at this pH? (c) Penicillin G is not suitable itself for oral administration, but the sodium salt NaP ...continues
Calculate Solubility for Calcium Fluoride in 0.050 m (molality). Compare to the Solubility found ideally. Ksp for Calcium fluoride =3.9 x 10^-11. I need to find this number using activity coeffecients and ionice strength.
Can you look over my solutions and let me know if the process is correct. I'm not 100% sure. Calculate the ratio of [glutamine]/[glutamate] at equilibrium.
Enthalpy, entropy and gibbs free energy.
Can you take a look at the solutions for the attached problem. It seems trivial, but there is some points that I feel am missing (re:pressure range). See attached file. Thanks
Conc. of an ideal solution as function of T and position in a strong gravit. field
An ideal solution w solute density 1.05 and solvent density 1.00 is subject to a huge gravity force field, a linear function of postition, F=kr, k is a constant and r is the position along the field. Derive the concentration as a function of T and position r along the field. (Hints: express grav. potential as function of r, Gi ...continues
For any isothermal change of state in an ideal gas, how is the relation "delta H = delta U" derived?
0.5 mol of an adiabatic monotonic ideal gas in a container at 250kPa and 350K is allowed to expand: a) reversibly b) against a constant pressure of 150kPa until a final pressure of 150kPa is reached. Find the final temperature, delta U, delta H, q, and w for each process (a & b).
0.5 mol of an adiabatic monotonic ideal gas in a container at 250kPa and 350K is allowed to expand reversibly: Cv= (3/2)R Cp= (5/2)R If possible, find the final temperature, delta H, delta U, q, and w
Adiabatic ideal gas expansion @ constant pressure
0.5 mol of an adiabatic monotonic ideal gas in a container at 250kPa and 350K is allowed to expand against a constant pressure of 150kPa until a final pressure of 150kPa is reached. (Cv=3/2R, Cp= 5/2R) if possible, find the final temperature, delta H, delta U, q, and w.
