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Suppose a DNA duplex is not self-complementary in the sense that the two polynucleotide strands composing the double helix are not identical. Call these strands A and B. Call the duplex AB. Consider the association equilibrium of A and B to form duplex AB A + B-> AB Assume the total strand concentration is C and, initially, A and B have equal concentrations; that is, CA,0 = CB,0 = C/2. Obtain an expression for the equilibrium constant at a point where the fraction of the total strand concentration C that is duplex is defined as f. If the strand concentration is 1.00 X 10^-4 M, calculate the equilibrium constant at the melting temperature.
A gram of a salt dissolves in 4.9ml of water to from a saturated solution whose specific gravity is 1.08, how many gram of salt will be contained in 100ml of the saturated solution
Decide whether or not each of the following metals dissolves in 1M HCl. For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves
Must use heating method and provide complete list of items used as well as the variables. A hypothesis, aim and title will be greatly appreciated.
What are the names and principle differences in the two models of substrate/enzyme complex formation?
Draw Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another.
The first ionization energy, E, of a lithium atom is 0.860 aJ. What is the wavelength of light, in nm, that is just sufficient to ionize a lithium atom
What is the nickel ion concentration in a solution prepared by mixing 389 mL of 0.428 M nickel nitrate with 467 mL of 0.323 M sodium hydroxide. The Ksp of nickel hydroxide is 1 × 10-16
At what wavelength do you measure the change in absorbance to assay for enzyme X? Does the absorbance increase or decrease over time?
How many different types (sets) of hydrogens are there in 2,2-dimethylpentane
A 280ml flask contains pure helium at a pressure of 754 torr . A second flask with a volume of 475ml contains pure argon at a pressure of 732 torr . If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial..
Consider the following reaction: 2H2O (g) + 2SO2 (g) 2H2S (g) + 3O2 (g) a reaction mixture initially contains 2.8 M H2O and 2.6 M SO2. Determine the equilbirum concentration of H2S if Kc for the reaction at this temperature is 1.3 x 10^-6
when 500 L of a 2.0 M solution of Pb(NO3)2 is mixed with an excess of 1.00 M solution of KI, how many grams of lead(II) iodine are formed?
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