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Menthol is a flavoring agent extracted from peppermint oil. It contains C, H, and O. In one combustion analysis, 10.00 mg of the substance yields 11.53 mg H2O and 28.16 mg CO2. What is the empirical formula of menthol? Add subscripts to complete the empirical formula.
caffeine is about 10 times as soluble in hot water as in cold water a chemist puts hot water extract of caffeine in to
a 1.800 g sample of phenol c6h5oh was burned in a bomb calorimeter. the calorimeter contains 1250 g of water and the
Calculate the number of molecules in 9.00 moles H2S. Express your answer numerically in molecules.
if the density of carbon dioxide in air is .65mg/L, what volume is occupied by 25kg of carbon dioxide?
If 4.800* 10^-5 mol of uranium-238 will effuse through a hole in 125 seconds, how many mol of uranium-235 will effuse through the same hole in the same amount of time
A second-order reaction of the type A+2Bâ†'P was carried out in a solution that was initially 0.050 mol dmâˆ'3 in A and 0.030 mol dmâˆ'3 in B. After 1.0 h the concentration of A had fallen to 0.010 mol dmâ
A typical backyard swimming pool holds 150 yd^3 of water. What is the mass in pounds of the water?
The solubility product of PbBr2 is 8.9x10^-6. Determine the molar solubility a) in pure water, b) in 0.20M KBr solution, c) in 0.20M Pb(NO3)2 solution.
Be sure to include a concise discussion of the reasoning. Construct tables summarizing the IR and 1H NMR data, and assign the peaks in the IR and NMR spectra to the appropriate structural elements in U. Explain the appearance of the base peak at m..
The solubility product Ksp for silver iodide is 1.5X10%u221216 at 298K. calculate the osmotic pressure of a saturated aqueous solution of silver iodide at this temp. you may assume that the solution behaves ideally.
Question- Calculate the total kinetic energy and total vibrational energy of all the molecules in a corked one liter bottle of an ideal nitrogen gas N2 in equilibrium at temperature T = 1000 K and pressure P = 0.5 bar.
The second flask has a volume of 8 liters and contains oxygen gas at a pressure of 1.25 atm. When the stopcock between the flask is opened and the gases are free to mix, what will the pressure be in the resulting mixture
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