The sublimation pressures of solid chlorine are 352 Pa at -112 C and 35 Pa at -126.5 C. The vapor pressures of liquid Chlorine are 1590 Pa at -100 C and 7830 Pa at -80C. Calculate a)heat of vaporization b)heat of sublimation c)heat of fusio d)triple point I have already figured out the first three. The heat of sublimation ...continues
(a) On the above graph, sketch the curve for specific binding of 3H-alprenolol to -adrenergic receptors. (b) Has the specific binding of 3H-alprenolol to the receptors reached saturation in the sketch? (c) Assume that one molecule of alprenolol binds per -adrenergic receptor. Calculate the number of ɧ ...continues
Could you take a look at some problems that I have answered to see if I'm in the right direction. (a) Using this plot, estimate the enthalpy and entropy of binding for each protein to DNA. (b) What is the free energy change for the binding of WT1 and EGR1 to DNA at 25oC? (a) For each of the proteins: is the binding to ...continues
Can you have a look at the solutions and graphs that I have plotted. There is a minor problem that I hope you can clarify for me. (a) Construct a Scatchard plot using the above data. What sort of cooperativity in the binding is occurring? (b) Make a Hill plot of the above data and determine the cooperativity coefficient. ...continues
You want to make a pH 7.0 buffer using NaOH and phosphoric acid. The sum of the concentrations of all phosphoric acid species is 0.100 M. The acid dissociation constants are as follows: Calculate the concentration of all species at pH 7.00.
Could you look over my solution for the following problem (see attachment file). Part (c) is not clear to me and I am certain that I'm missing some important facts, that would otherwise enable me to solve the problem. thanks.
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.
