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Codeine (C18H21NO3) is a narcotic pain reliever that forms a salt with HCl. What is the pH of 0.069 M codeine hydrochloride (pKb of codeine is 5.80)?
If you have 100 ml of pure water and add to it 100 ml of 2.0M HC2H3O2. What will be the final solution pH
briefly describe the theory behind IR spectroscopy and why it is a valuable technique to chemists.
If the mass of an empty weighing jar is 23.4568 g and the mass of the jar with the metal inside is 36.8320 g, and the volume in the graduated cylinder increases from 5.70 mL to 12.30 mL, calculate the density with uncertainty. The uncertainty for ..
The gas above the top liquid is at an absolute pressure of Pg. Furthermore, the densities and heights of liquid 1 and liquid 2 are P1 and P2 , and L1 and L2 , respectively. In terms of these given symbols, waht is the absolute pressure at the bott..
when heated hydrogen sulfide gas decomposes according to the equation above. a 3.40 g sample of h2sg is introduced into
what is the final ph of, a solution of 30ml of .2 m formate titrated with 25 mL of .24M HCL Kb for formate = 5.6*10^-11
Combustion analysis of a 13.42 g sample of equilin which contains only carbon, hydrogen, and oxygen produced 39.61 g CO2 and 9.01 g H2O. The molar mass of equilin is 268.34 g/mol. Find the molecular formula for equilin.
the complex ion cocn6-3 absorbs a photon of wavelength 2.90times102 nm. what is the splitting energy of this
Explain why the bond dissociation energy for the C-C sigma bond in propane is lower than the BDE for the C-C bond in propene.
a liquid unknown was found to be inslouble in water amp soluble in cyclohexane amp alcohol the unknown was found to
Use the Henderson-Hasselbalch equation to calculate the of each solution: a solution that contains 0.600% C5H5N by mass and 0.960%
A buffer solution is prepared by dissolving 0.075 moles of HOBr and 0.075 moles of NaOBr in 500mL of solution. Calculate the pH of this buffer. (HOBr: Ka = 2.4 * 10^-9)
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