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The incomplete pressures of CH4, N2, and O2 in a sample of gas were found to be 100, 450, and 200 mmHg, respectively. Compute the mole fraction of Nitrogen.
Enough of a monoprotic acid is dissolved in water to produce a 1.54 M solution. The pH of the resulting solution is 2.95. Calculate the Ka for the acid.
Elemental sulfur reacts with oxygen and water to produce Sulfuric acid in the presence of a catalyst. What minimum mass of sulfur is needed to prepare 175g of sulfuric acid
Tenzic acid is a H2Tenz is a diprotic acid with ionization constants Ka1 = 4.1 x 10-4, Ka2 = 1.5 x 10-9. Calculate a value for the [Tenz2-] in a 0.500 molar solution of H2Tenz.
Consider benzene (C6H6) in the gas phase. State a reaction that corresponds to breaking all the carbon-carbon bonds in C6H6 (g).
A balloon is filled with 5.00 mol of an ideal gas at 50.0 degrees celsius and 1.00 atm pressure. The temperature of the gas is increased to 90.0 degrees celsius while the pressure remains constant at 1.00 atm.
The washer has an outer diameter D = 45.0 mm, an inner diameter d = 9.0 mm, and a thickness h = 3.0 mm. Copper has density of 8.96 g/cm^3. What is the total volume of copper coating (in mm^3, 1cm^3 = 1000mm^3)
In the following reactions identify the elements oxidized and elements reduced: • 3Ag + 4HNO3 .............> 3AgNO3 + NO +2H2O • 6Fe2+ + Cr2O72- + 14H+ .......>
it is desired to produce an aqueous solution of ph8.75 by dissolving one of the following salts in water at 298 k.
what are the 3 resonance structures of NO3- what is the shape
A voltaic cell consists of Mn/Mn2+ and Cd/Cd2+ half-cells containing equal volumes of solutions with the following initial concentrations: [Mn2+] = 0.090 M; [Cd2+] = 0.073 M.
in a portable oxygen system the oxygen o2 iscontained in a cylinder whose volume is 0.00250 m3. afull cylinder has an
If a molecule having an ionization energy of 11.49 eV produces a photoelectron having a kinetic energy of 6.408E-19 J, what is the wavelength of the incident radiation
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