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Benzene, C6H6, and toluene, C6H5CH3, form ideal solutions. At 35°C the vapor pressure of benzene is 160. torr and that of toluene is 50.0 torr. In an experiment, 4.0 moles of benzene and 4.8 moles of toluene are placed in a closed container at 35°C and allowed to come to equilibrium. What is the mole fraction of toluene in the vapor phase?
a 0.115 m solution of an unknown weak acid ha has a ph of 2.57. i determined the acid ionization constant ka for the
calculate the concentration of the hydronium ion in a solution prepared by mixing equal volumes of .050 molar HOCL and .020 molar NaOCl
1. a sample of n2 gas occupies 2.40 l at 20?c. if the gas is in acontainer that can contract or expand at constant
Assume ideal gas behavior and that the heat capacity is not temperature dependent
Use Coulomb's law to calculate the ionization energy in kJ/ mol of an atom composed of a proton and an electron separated by 278.00 pm . Part 2, What wavelength of light would have sufficient energy to ionize the atom
using a carbon dioxide sample that occupies a 2.54 dm3 volume container at standard conditions. determine the volume of
The atomic weight of a newly discovered el-ement is 10.600 amu. It has two naturally occuring isotopes. One has a mass of 10.000 gms and a natural abundance of 70.000%. What is the isotopic mass of the other isotope?
Calculate the [HNO3] in each aqueous solution at 25C and classify each solution as acidic or basic
what is the percent of magnesium in magnesium phosphate?
Calculate this separation for n=100; also calculate the average radius, the geometric cross section, and the ionization energy. Could a thermal collision with another hydrogen atom ionize this Rydberg atom
Calculate total and individual w, q, ΔU, ΔH, and ΔS of an Otto engine operating on stoichiometric ethanol - oxygen gas mixture, with cylinder volume of 1 l and compression ratio of 18:1.
Ethylene glycol, HOCH2CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by the following reaction. C2H4O(g) + H2O(l) HOCH2CH2OH(l)
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