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If the concentration of an acid in solution is 2.2 times larger than the concentration of its conjugate base, and the pH of the solution is 3.5, what is the pKa of the acid?
Why is a mixture of alcohol and water used, rather than simply water itself, to saponify the fat or oil
silica gel columns having smaller particle size procedure more effective chromatographic separations
Asprin, whose structure can be found in the introduction, can be made from the reaction of a phenol and an anhydride. Give the phenol and anhydride that could be used to make aspirin?
Calculate the mass of sodium hydroxide that must be added to 1.00 L of 1.00 M HC2H3O2 to double the pH of the solution (assume that the added NaOH does not change the volume of the solution)
The standard free energy for the neutralization of HCl with NaOH at 25 degrees celsius is -79.9KJ/mol. Calculate the equilibrium constant for the reaction.
Draw the major organic product(s) formed when hex-2-yne undergoes hydration in the presence of HgSO4 and H2SO4.
is believed to follow the mechanism H2O2 + I- ? H2O + IO- fast H2O2 + IO- ? H2O + O2 + I- slow At 25oC, the first step is fast relative to the second step. What is the rate law predicted by this mechanism?
When the band relaxes, the chains return to a tangled state. what happens to the entropy of the band when a stretched band relaxes
Calculate how many joules are needed to heat and calculate the theoretical volumes of 1.0 M Tris base?
What about the molecule as a whole? Is that molecule CH4 a polar or non-polar?
A 771 mL gas sample at STP is compressed to a volume of 242 mL, and the temperature is increased to 31?C. What is the new pressure of the gas in Pa
How many grams of sodium phosphate will be needed to produce 500ml of a solution that has a concentration of Na+ ions of 1.10M ?
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