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a) Why is it that a virial expansion can be used to describe the behavior of a real gas? That is, what is the rationale for the equation used and how are the parameters determined?b) Why is it that Van der Waals can be used to describe the behavior of a real gas? What is the rationale for the equation used and how are the parameters determined?
Which of the following is true of the binding energy derived from enzyme-substrate interactions. A. Most of the binding energy is used to decrease the deltaG°' of the reaction
High levels of ozone (O3) make rubber deteriorate, green plants turn brown, and cause people to have difficulty breathing. Calculate delta G at 298 K for the formation of 1 mole of O3 from O2 in urban smog, where [O2]=0.210 atm and [O3]=5.00x10^-7..
Give the formula of a product (derived from the first-named substance) that may be formed in the following reactions. (Note, in the example that any lower oxidation state compound is possible
Use Le Chatelier's principle to explain why the buffer prevents large changes from occuring in PH when
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 8.10 nm in diameter?
consider a 0.0500m HClO2 is a moderately weak electrolyte acid such that 36% of the molecules dissociate when dissolved in water. calculate the van't hoff factor
60.0 mL of a 0.450 M HNO_3 solution is titrated with 0.570 M KOH. Calculate the volume of KOH required to reach the equivalence point.
consider the following mixtures. in each case either calculate the pH if the resulting solution is a buffer solution or state why the solution does
Calculate the wavelength of light emitted from a hydrogen atom when it undergoes a transition from the n=6 level to n=3.
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 77. Include any hydrogen atoms and the charge.
A bottle contains 175 m: of insulin at a concentration of 20.0 mg/ml . What is the total mass of insulin in the bottle?
For the reaction 2CH2O(g) + O2(g) ? 2HCOOH(l), if 4.19 × 1022 molecules of formaldehyde (CH2O) react with excess oxygen, what is the theoretical yield of formic acid (HCOOH)
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