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The vapor pressure of pure ethanol at 35°C is 102.8 torr and that of pure chloroform is 295.1 torr. In an ethanol-chloroform solution in which the mole fraction of ethanol is 0.20, the total vapor pressure is 304.2 torr, and the mole fraction of ethanol in the vapor is 0.138. Calculate the activity coefficients of the ethanol and the chloroform.
What is the total volume of gaseous products formed when 198 liters of propane (C3H8) react completely according to the following reaction? (All gases are at the same temperature and pressure.) propane (C3H8) (g) + oxygen (g) --> carbon dioxide (g..
A 1.90 g sample of a large boimolecule was dissolved in 11.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule
A container with a volume of 101 L contains how many atoms of argon gas at STP?
What was the chemical reaction in the body, and what substance in the liver was produced to help catalyze the reaction?
How many grams of manganese may be formed by the passage of 32,349 C through an electrolytic cell that contains an aqueous
An alien rocketship is traveling at a speed of 40 inches per minute. At this speed, how many feet will it travel in 1 second? Round to the nearest thousandth.
The density of chloroform, a widely used organic solvent, is 1.4832 at 20 . How many milliliters would you use if you wanted 119.0 of chloroform.
A sample of H2SO4 contains 1.11 grams of H (1.01 g/mol). How many moles of H2SO4 (98.02 g/mol) are present?
How many grams of copper are in the necklace? 3. If 18-karat gold has a density of 15.5 , what is the volume in cubic centimeters?
Electrochemical cell potentials can be used to determine equilibrium constants that would be otherwise difficult to determine because concetnrations are small
A solution may contain any of the Group III cations. Treatment of the solutio with CIO- in alkaline medium yields a yellow solution and a colored precipitate.
Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid
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