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What is the hydronium ion concentration of a 0.100 M hypo hpyochlorous acid solution with Ka=3.5x10^-8? Given the equation for the dissociation of hypochlorous acid.
Calculate the pH of a 1.36x10^-2M solution of the decongestant ephedrine hydrochloride if the pKb of ephedrine (its conjugate base) is 3.86.
Calculate the overall (triangle)H degrees for the reaction shown given the bond dissassociation enrgies
What are the arguments in favor of the hypothesis that the spliceosome is a ribozyme. How could you test this hypothesis
A cylinder fitted with a piston contains 3.00 moles of He gas (ideal!) at P = 1 bar and is held in a large constant-temperature bath at 400 K. The pressure is reversibly increased to 5.00 bar.
if the half life of a certain radioactive element is 1,250 years what is the percent of atoms remaining after 7,500 years is ?
The X compound decolors in Bromine, bubbles in Na metal, changes from orange to green in Chromic Acid, and has no reaction with Lucas reagents.
A light green liquid, and informed that someone accidentally spilled a few small flecks of an intensely green-colored crystalline dye in a rather expensive solvent, so it doesn't make sense to throw away the very slightly contaminated solvent.
What volume of a 0.500 M hydrochloric acid solution is needed to neutralize each of the following, respectively: a) 10.00 mL 0.300 M sodium hydroxide ; b) 10.00 mL 0.200 M barium hydroxide
Calculate the de Broglie wavelength of the bullet traveling at 1289 miles per hour. Physical constants can be found here.
Calculate the heat released as 115 grams of water cool from its normal boiling point (100 degrees C) to a temperature of 33 degrees C.
how many grams of KO2 are needed to produce 180.0 L of O2 at 18.0 C and 1.00 atm
Determine the specific heat of a material if a 38 g sample of the material absorbs 40. J as it is heated from 298 K to 313 K?
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