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A student found an old bottle labeled "thymol" on the stockroom shelf. After noticing a pleasant odor, she obtained the following mass, IR, and NMR spectra. The NMR peak at d4.8 disappears on shaking with D2O. Propose a structure for thymol, and show how your structure is consistent with the spectra. Propose a fragmentation to explain the MS peak at m/z 135, and show why the resulting ion is relatively stable.
A 25.688 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia.
How many grams of methane gas (CH4) need to be combusted to produce 18.2 L water vapor at 1.2 atm and 275 K? CH4 (g) + 2 O2 (g)-> CO2 (g) + 2 H2O (g)
An acqueous solution of Kl has a freezing point of -1.80 C and an osmotic pressure of 26.0 atm at 25.0C. Assume Kl completely dissociates in water. What is the density of the solution
A mixture of 82.0 g of magnesium (24.31 g/mol) and 350 g of iron(III) chloride (162.2 g/mol) is allowed to react. What mass of magnesium chloride (95.21 g/mol) can be formed?
Sulfamic acid (FM 97.094) is a primary standard that can be used to standardize NaOH. What is the molarity of a sodium hydroxide solution if 38.92 mL react with 0.3341 g of sulfamic acid
If He gas has an average kinetic energy of 4310 J/mol under certain conditions, what is the root mean square speed of O2 gas molecules under the same conditions
What is the change in entropy for the system, surroundings, AND total for the following processes
When working NMR questions, solutions maunuals say that the peaks are 1.0 spaces long or 5.5 spaces long.
identify the functional group; and 3) and discuss general key chemical properties of the chemical that a fire, environmental, health or safety personnel should know.
commercially available styrene contains about 15 ppm of 4-tert-butylcatechol. Draw the structural formula for 4-tert-butylcatechol
a volume 10.0ml of a 0.00550 m solution of cl- ions are reacted with 0.500 m soultion of agno3. what is the maximum
Saltpeter is a compound made of potassium (K), nitrogen (N), and oxygen (O). Every 100.00 g of saltpeter contains 38.67 g potassium and 13.86 g nitrogen. What is the mass of oxygen contained in 316.0mg of saltpeter?
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