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Problem- CFC-119 (trichlorofluoromethane, CCl3F) has been used for many years as the working fluid in refrigerators. Given its heat of vaporization is 26.88 kj/mol and its entropy of vaporization is 90.51 J/(mol*K), what is the boiling point of CFC-11?
Solve the above problem and provide steps with explanation
Draw the major product for each of the following reactions. Make sure that you draw a major product that could be isolated, not just an intermediate or something that would be present only in low equilibrium population.
certain first-order reaction () has a rate constant of 1.00×10-2 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
Problem- A nonvolatile organic compound Z was used to make up two solutions. Solution A contains 1.00 g of Z dissolved in 100 g of water and has a vapor pressure of 754.5 mmHg at the normal boiling point of water. Calculate the molar mass of Z in ..
Potassium hydroxide is used to precipitate each of the cations from their respective solution. Determine the minimum concentration of {\rm KOH} required for precipitation to begin in each case.
The titration requires 34.11 mL of base to neutralize 15.00 mL of the acid. What is the Molarity if acid in the vinegar?
Stishovite is a high pressure form of SiO2 found in meteorite craters. While normal SiO2 has the quartz structure, in which each Si is coordinated by four O atoms
A sample of neon is collected at 2.7 atm and 12.0 C. it has a volume of 2.25L.What would be the volume of this gas at STP?
If CO2 is not removed by boiling after the addition of HCL, how will this affect the determination of moles of base per gram of antacid tablet?
Compute the mass of one atom of helium (atomic mass = 1.01 amu). Compute the wavelength of this atom if it is traveling at 0.8 c
Concentrated sulfuric acid (almost 100%) H2SO4 has a recognized density of 1.84 grams/cm^3. Based on this, calculate the molarity of this liquid.
A solution is labeled "0.464 M NaClO." What are the following in the solution? Express your concentrations to three significant figures even when only two are valid. Express your pH to two places past the decimal point. Note that the value of Ka f..
If the recorded value of the unknown sample in her lab report was 22.5 g, what was the actual value of the sample
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