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Ethylene diamine (bp 116 C) and water form a maximum boiling azeotrope (bp 120 C); the azeotropic mixture is 80% in ethylene diamine. Sketch a distillation curve(volume on the x-axis and temperature on the y-axis) to show what you should expect to see should one distill 35 mL of a 50:50 mixture of these liquids. Be as quantitatively as possible.
calculate the molarity and mole fraction of acetone in a 1.06 m solution of acetone ch3coch3 in ethanol c2h5oh. density
A gaseous hydrocarbon fuel is burned in 26.84% excess oxygen and the exhaust gas analyzed. On a dry basis, the ratio of carbon dioxide to carbon monoxide to oxygen in the exhaust gas
50 g of soil is extracted with nh4cl ammonium chloride and the extract diluted to 0.5 liter. the solution contained the
For a certain process at 27°C, DG = +210.6 kJ and DH = -168.2 kJ. What is the entropy change for this process at this temperature? Express your answer in the form, DS = ____ J/K.
Determine the values of KM and Vmax for the decarboxylation of keto acid given the following data
sulfur dioxide dichloride so2cl2 reacts with water to give a mixture of sulfuric acid and hydrochloric acid. a pure
How much thermal energy is required to take a 42.0 g block of ice at -12 degrees C and heat it to steam at 131 degress C
A portable photometer with a linear response top radiation registered 83.2 microamps with a blank solution in the light path. Replacement of the blank with an absorbing solution yielded a response of 451 microamps calculate
what is the lewis dot structure for
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 203.00 pm What wavelength of light would have sufficient energy to ionize the atom
Consider the following system which has been shown to be spontaneous at 298K and select the true statement below. the ?S for the system is predicted to be negative, so therefore the ?S for the surroundings must be positive to a greater extent so tha..
How many grams of are CaH2 needed to generate 147L of H2 gas if the pressure of H2 is 827 torr at 20 C?
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