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How can ethidium ions cause mutations in DNA and what type of interactions exists between the DNA and ethidium ions?
An extraction procedure specifies that an aqueous solution containing dissolved organic material be extracted twice with 10-mL portions of diethyl ether.
what is the hydrogen ion concentration of this solution? What volume of .250 M KCl will completely react with 50.0 mL OF .115 m Pb(NO3)2?
In the boron trifluoride etherate-catalyzed reaction of acetic anhydride and salicylic acid to produce acetylsalicylic acid, or aspirin, anhydrous conditions prevail. So, what serves as the base, as water cannot?
Using the following data, calculate the standard enthalpy of reaction for the coal gasification process 2C(s) + 2H2O(g) --> CH4(g) + CO2(g).
crystallize in a cubic closest packed structure. Use the density of silver (10.5 g/cm3) and its molar mass (107.9 g/mol) to calculate an approximate atomic radius for silver
A line in the emission spectrum of an atom occurs at a wavelength of 560 nm. What is the energy difference between the two energy levels involved in this emission.
Suppose the current flowing from a battery is used to electroplate an object with silver. Calculate the mass (in grams) of silver the would be deposited by a battery that delivers 1.25 A/hr of charge.
if 11.2 L of N2 are reacted to form NH3 at STP, how many liters of hydrogen will be required to consume all of the nitrogen
Identify the acid and base on the left side of the following equations and identify their conjugate species on the right side
write the reactions. Also, identify the minor alkene product,C.
The boiling point of an aqueous solution is 101.36 C. What is the freezing point. Imagine two solutions with the same concentration and the same boiling point, but one has benzen as the solvent and the other has carbon tetrachloride as the solvent..
What is the rate constant? what would happen if you increase the concentration of NO by a factor of 1.9?
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