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A solution is composed of 1.60 mol cyclohexane (P=97.6 torr) and 2.10 mol acetone (P=229.5 torr). What is the total vapor pressure Ptotal above this solution? Express your answer numerically in torr.
Why is water a reactant in the fermentationof sucrose? Enter the solubility-product expression
C3H8 + 5O2 reacts to yield 3CO2 + 4H2O +488 kJ What is the heat released if 2.5 moles of C3H8 reacts completely with oxygen?
If an athlete weighs 133lb and has 15.0\% body fat by weight, how many pounds of fat does the athlete's body contain
A 0.451 M solution of a weak acid, HA, has a pH of 4.01. Calculate Ka for the acid. Use E notation and 3 significant figures.
the anharmonicity constant is 117.90 cm^-1. Calculate the frequency at which the Q branch for the first overtone will be found.?
There are over fifteen isotopic forms of sulture. one of those isotopes is sulfur-29 (amu=28.99) What is the binding energy for one mole of sulfure-29, given the masses of a proton, a neutron, and an electron are 1.007276u, 1.008666u, .000548u
0.5865 g sample of lactic acid (HC3H5O3) is burned in a calorimeter whose heat capacity is 4.812 kJ/ oC. The temperature increases from 23.10oC to 24.95oC.Calculate the heat of combustion of lactic acid a. per gram b. per mole.
During the electolysis of fused BaCl2, which reaction occurs at the cathode? (1)Chloride ions are oxidized (2) Chloride ions are reduced (3) Barium ions are oxidized (3) Barium ions are reducued
explain the main concept behind the vsepr theory of molecular shape. how do both number and type of electron pairs
When 190.0 mL of 0.360 mol are added to 190.0 mL of 1.00×10?2 M AgNO3 (aq), what percentage of the Ag+ is left unprecipitated?
how many grams of sodium sulfide are formed if 1.60 g of hydrogen sulfide is bubbled into a solution containing 2.13 g
compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of
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