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At 27 degrees celsius, the vapor pressure of pure water is 23.76 mmHg and that of an aqueous solution of urea is 22.99 mmHg. Calculate the molality of urea in the solution.
A vapor composed of 0.20 mole fraction ethanol and 0.80 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.
How many grams and pounds of washing soda are needed to remove the hardness from 500 gallons of water that has a hardness of 150 ppm CaCO3?
How many mols of hydrogen are produced from the reaction of .558 mols of zinc with an excess of hydrochloric acid?
question you would like to prepare a buffer solution using acetic acid and sodium acetate. you take a 15.00 ml aliquot
If you dissolved 0.95g of salt in 100ml distilled water, what is the concentration of salt in this solution, in % wt/vol
What is the wavelength of an electron traveling with a velocity of 7.0 times 10 to the 3rd power?
When the gases diydrogen sulfide and oxygen react, they form the gases sulfur dioxide and water vapor. A: Express the answer as a chemical equation. Identify all of the phases in the answer. Balance the equation
given rate constant 1.8x10-4 s-1 at 25 degree celsius when hydrolysis of sucrose c-12 h-22 o-12 into glucose and
What is the barium ion concentration in a saturated barium fluoride solution made by adding solid BaF2 until no more dissolved
Could you please show the reaction in six steps with the curved arrow mechanism, show all the lone pairs,complete the structure of sulfuric acid or the hydrosulfate ion as necessary and complete each organic framework. Don't include the water.
From the following data, calculate the delta G for the reaction at 25 degrees C. delta H = -199 kJ/mol delta S = -4.1 Joule/Kelvin - mol these are the Standard values of formation at 25 deg C.
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
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