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As we know many volatile substances are present in Earth's atmosphere in trace amounts. The given quantities of these trace gases a) 4.887 1017 atoms of Ne (g) , b) 5.080 x 1016 molecules of hydrogen (g), c) 1.85 x 1013 molecules of NO2 (g), d) 9.45 x 1015 molecules of O3 (g) were found in a 1.0 gallon sample of air. Compute the number of moles of each gas in this sample?
what is the pressure of H2 gas collected over water when the total pressure is .980 atm at 25 degrees celsius.
An astronaut's spacesuit has a pinhole leak. If the spacesuit contains air of normal composition (78% nitrogen and 21% Oxygen),
the freezing point of water h2o is 0.000c at 1 atmosphere.how many grams of ammonium chloride 53.50 gmol must be
Match the detector or detectors that can be used in gas chromatography for the detection of the following list of analytes. (More than one detector may be appropriate for a given analyte, and a given detector may be appropriate for more than one g..
preparing semicarbazone derivatives, what is the purpose of adding sodium acetate to semicarbazide hydrochloride?
What is the percent yield of a reaction in which 274 g phosphorus trichloride reacts with excess water to form aqueous phosphorus acid (H3PO3) and 105 g HCl?
When propene is treated with hypochlorous acid (HOCl), the product isolated is 1-chloro-2-propanol.
A fellow student is having trouble understanding polar covalent bonds, non-polar covalent bonds, and ionic bonds. Describe how you would help your the fellow student
A microwave oven operates at 3.00GHz . What is the wavelength of the radiation produced by this appliance? Express the wavelength numerically in nanometers.
If 100 mL of a solution containing 0.001 g of a compound with a molecular weight of 150 has a measured absorbance in a 1-cm cell of 2.0, what is the compound's molar extinction coefficient?
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
HBr is mixed with water. Which is the best description of what you would expect to find in the solution
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