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An ideal solution is created by mixing A and B in the molar ratio 2:3. The mixture has a normal boiling point at 85 degrees Celsius.
A. Given that the vapor pressure above pure A at 85 degrees Celsius is 0.79 atm, what is the vapor pressure (in atm) of A above the mixture?
B. What is the vapor pressure of B above the mixture?
C. What would be the vapor pressure above pure B at 85 degrees Celsius?
D. Predict the normal boiling point of pure B (in degrees Celcius) given that deltaHvaporization(Pure B)=67.9kJ/mol.
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Calculate the empirical formula, Molecular weight, and molecular formula of the compound when an organic compound has C=55.8% and H=7.03%. A 1.500g sample was vaporized collected over H2O and found to occupy 0.500L at 100C and 764 mmHg. (vapor pre..
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An arctic weather balloon is filled with of helium gas inside a prep shed. The temperature inside the shed is . The balloon is then taken outside, where the temperature is . Calculate the new volume of the balloon.
Calculate the energy change for the reaction K(g) + I(g) → K+(g) + I- (g) given the following ionization energy (IE) and electron affinity (EA) values. IE K = 419 kJ/mol, IE I = 1010 kJ/mol; EA K = 48 kJ/mol. EA I= 295 kJ/mol
When adding ethylene glycol to your cooling system, it is usually mixed 50:50 by volume. This will prepare a 52.7 mass % solution. Convert this concentration to molality and predict the freezing point depression
if 5.0 of nitrogen at 12 degree Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure?
A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of a 2.18 g sample burns in excess oxygen yields 3.94 g of CO2 and 1.89 g of H2O. A separate experiment shows that a 1.23 g sample contains 0.235 g of N.
The pH at 25 °C of an aqueous solution of the sodium salt of p-cresol (NaC7H7O) is 11.60. Calculate the concentration of C7H7O- in this solution, in moles per liter. Ka for HC7H7O is equal to 6.7E-11.
What volume in liters of O2(g) is required to form 46 L of CO2(g)? Assume both gases are measured under the same conditions.
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