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At a given temperature the vapor pressures of benzene and toluene are 183 mm Hg and 59.2 mm Hg, respectively. Calculate the mole fraction of benzene in the vapor phase over a solution of benzene and toluene with Xbenezene = 0.600.
suggest at least one characteristic absorption each in the ir spectra of 9-flurenone and 9-hydroxyfluorene that could
what molecule would give the following mass spec data? m/z =15, 29, 43, 57 provide the dominate peaks in the spectrum. the m/z =57 (m-29) is the base peak. and the mz = 43 and 29 ions are also abundent.
A 10.0 long cylindrical glass tube, sealed at one end, is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 11.90 . The density of ethanol is 0.789 . what is the inner diameter of cylinder?
A sample of neon gas has a volume of 2.5 L at 780 torr and 24 degrees C. How many neon atoms are in the sample
What data is collected in a titration? How would I be able to find what the volume of 0.10M HCl should be needed to titrate .136 g Na2CO3 according to the reaction equation:
acetylene gas c2h2 is produced as a result of the following reaction. cac2s2h2ol c2h2gcaoh2aq . if 32.0 g of cac2 are
How many grams of H2O are produced when 10.0 g of Phenol, C6H6O, reacts with 20.0 g of O2 in the following reaction
The normal boiling points of CO and SO2 are -192c and -10c, respectively. a) At 25c and 1 atm, which gas would you expect to have a molar volume closest to the ideal value
1) Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 166.00pm 2) What wavelength of light would have sufficient energy to ionize the atom
Calculate the wavelengths of the following objects: a) a muon(a subatomic particle with a mass of 1.884x10^-25 g) traveling at 3.00x10^2 m/s
How much limestone in kg is need to completely neutralize a lake containing -- of H2 per liter? 5.0 * 10-3g SO4 5.2 * 10^9-L.
What is the pH of a buffer prepared by adding 0.809mol of the weak acid HA to 0.305mol of NaA in 2.00L of solution? the dissociation constant Ka of HA is 5.66x10^-7
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