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The boiling point of carbon tetrachloride is 76.8 oC. A given solution contains 7.69 g of a nonvolatile nonelectrolyte in 373 g of CCl4. The solution boils at 78.1 oC. What is the gram molecular mass of the solute? (Boiling point constant for CCl4 is 5.03 oC/molal)
Carbon-carbon single bonds in organic molecules have energies about 350 kj/mol. What is the corresponding wavelength.
chemical kinetics - predict the rate law of a reaction based on the mechanism of the reaction.the mechanism of a
What is the fraction of association for the following potassium propinate solutions? Ignore activities. The Ka of proponoic acid is 1.34*10^-5.
The Ksp for AgBr is 4.1 X 10-13. Will a precipitate form if 25 ml of 3.45 X 10-8 M AgNO3 solution is mixed with 25 ml of 4.65 X 10-5 M NaBr solution
In a first order decomposition in which the rate constant is 0.201 sec-1, how long will it take (in seconds) until 0.131 mol/L of the compound is left, if there was 0.566 mol/L at the start
How much time is required for a 6.85 sample of to decay to 0.500 if it has a half-life of 27.8 days
When a person experiencing heartburn takes a dose of an antacid drug, like Tums or Rolaids, a neutralization reaction occurs in the stomach. How is it chemically possible for the stomach acid to remain acidic even after the neutralization reaction..
In the electron transport chain, electrons from FADH2 are eventually used to reduce O2 into H2O. Experimentally, the proton motive force created by this process will generate 2 ATP molecules from ADP and Pi, using ATP synthase. From the informatio..
When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
determine the mass of solid sodium formate of mw 68.0 must be combined to 150 ml of 0.66 moll hcooh to make a buffer
16.57 The complex [Ni(NH3)6]2+ has a ligand field splitting of 209 kJ·mol-1 and forms a purple solution. What is the wavelength and color of the absorbed light.
How can grains in a silo spontaneously explode? How is it that corn or any other grain can explode in a silo on it's own? How could a natural gas leak just cause corn to explode in a silo?
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