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A 11.5 mL sample of liquid butane (density= 0.573 g/mL) is evaporated in an otherwise empty container at a temperature of 28.5 degrees Celsius. the pressure in the container following evaporation is 892 torr what is the volume of the container
Diethyl ether is a volatile liquid, that is used in many solvents. The vapor pressure of diethyl ether is 401 mmHg at 18C. Calculate its vapor pressure at 29C.
metallic copper is formed when aluminum reacts with copperii sulfate. how many grams of metallic copper can be obtained
Carbon dating is a well-calibrated radiometric dating system used for items generally younger than 50,000 years old (14 C has a half-life of 5730 years). A recently unearthed Viking burial mound contained a ship, a sample of which was found to hav..
What is the wavelength, in nanometers, of the light emitted when the electron in a hydrogen atom drops from the energy level n_i = 12 to n_f = 5
A chemist needs to determine the concentration of a solution of nitric acid, HNO_3. She puts 865 mL of the acid in a flask along with a few drops of indicator.
A reaction has a rate constant of 1.27×10?4 /s at 28 degrees C and 0.226 /s at 78 degrees C. Determine Activation Barrier. What is the value of the rate constant at 16 degrees C?
gaseous mixture of 2.34 kg of silane, Sih4 and 55.4 kg of Argon. Determine the mole fraction of silane
Hydrochloric acid is added to zinc. How many mls of 0.500 M HCl are needed to react completely with 25.0 g of zinc metal
On size-exclusion chromatogram you have three peaks (2.9, 3.5, and 4.8 min). Column dead volume is 12 mL, and flow rate 4 ml/min. Are your separation conditions fit for size-exclusion requirements? Explain why.
Show how isobutylamine can be synthesized from isobutyl bromide and other necessary reagents using the Gabriel synthesis.
consider this reaction. caco3 s -gt cao9s co2 gwhat mass of caco3 will produce 8.0 l of co2 measured at standard
The Goodyear blimps, which frequently fly over sporting events, hold approximately 1.60×105 ft^3 of helium. If the gas is at 25deg C and 1.0 atm, what mass of helium is in the blimp
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