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A gas mixture is made by combining 8.0g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 18.08L.
What is the molar mass of the unknown gas?
what is the value for deltaS if 20g of a substance (MW=78.0g/mol) is boiled at 50 degrees C
An engineer was trying to minimize greenhouse gases from car exhaust and was studying the gases that come from the trail pipe of a car at 800K.
What is the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 7.40 atm. The Henry's law constant for ammonia gas at 298 K is 58.0 M/atm.
describe the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops
A sample of magnesium sulfate heptahydrate having a mass of 7.35 g. is dried completely. How many grams of dry product are expected to be found
What product would you expect to be formed when propylamine reacts with aqueous sodium nitrite and hydrochloric acid
The activation energy of a certain reaction is 45.3kJ/mol . At 24{~}^{\circ}\rm C , the rate constant is 0.0160s^{-1} . At what temperature in degrees Celsius would this reaction go twice as fast?
Calculate the pH of the solution after the following volumes of HCl have been added. (For each part remember t ask yourslef these questions. What units am I working in?
Dipole moment, Formaldehyde has a very large dipole moment (2.33 Debye) whereas carbon monoxide has a very small dipole moment (0.11 Debye)
Describe the method for checking for completeness of precipitation. Briefly explain why precipitates are usually rinsed with distilled water before they are tested further.
A standard five-day BOD test is run using a mix consisting of four parts distilled water and one part wastewater (no seed). The initial DO of the mix is 9.0 mg/L, and the DO after five days is determined to be 1.0 mg/L
Calculate the molar solubility of bismuth sulfide, Bi2S3 (Ksp = 1.6 x 10-72) in (a) pure water, and (b) 0.05 M cadmium sulfide, CdS
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