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Problem- A qualitative analysis of an unknown acid found only carbon, hydrogen, and oxygen. A follow-up quantitative analysis of a 10. 46 mg sample that was burned in excess oxygen yielded 22.17 mg CO2 and 3.400 mg H2O. Mass spectrometry determined the molecular mass to be 166 g/mol. Finally, a 0.1680 g sample was titrated to the end point with 16.18 mL of 0.1250 M NaOH. What is the molecular formula for the acid? Is the acid mono-, di-, or triprotic?
Determine the solution for the above problem express your work in detail
racemic 2-methyl-1-butanol instead of 1-butanol in your experiment, why would you expect to see more than one ether side product?
If Barnase is a two-state protein that is denatured in guanidium hydrochloride (GdnHCl). Barnase is 50% unfolded in 3 M GdnHCl, but 99% folded in 0.03 M GdnHCl. If 3 M solution of Barnase is diluted by a factor of 100
In moist air the lighter water molecules have a greater rms average speed than the heavier nitrogen molecules. Compute the difference in the two average speeds at 30C
Carbon's 2s and 2p orbitals are hybridized, resulting in three hybrid sp2 orbitals and one (non-hybridized) pz orbital. Each new orbital has one lone electron assigned to it.
When 3-methyl-2-pentene is treated with mercuric acetate, Hg(O2CCH302, in a THF-ethanol mixture and the resulting product reacted with NaBH4 in basic solution, the principal product formed is which of these
Bacteria reason milk to go sour by generating lactic acid. Formulate an experiment that could measure the activation energy for the production of lactic acid by bacteria in milk. Explain how your experiment will provide the information you need to..
Explain how can you distinguish between the pairs of the following isomers using spectroscopic methods (IR or NMR)
An aqueous solution of KI has a freezing point of -1.70 C and an osmotic pressure of 26.5 atm at 25.0 C. What is the density ?
What is the heat of combustion per gram of butane?
What mass of each will be present in the air assuming the liquid and vapor are in equilibrium? The vapor pressures at 300 K are 3.2 kPa, 13.1 kPa, and 0.23 kPa respectively.
A student determined the freezing point of pure t-butyl alcohol following the procedure given in this experiment . Because of an experimental error, the freezing point temperature that she obtained was higher than the correct value
what is the molarity of a solution made by dissolving 0.0815 grams of na2so4 in enough water to form exactly 750. ml of
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