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Salicylic acid, used in the synthesis of aspirin, has mass composition 60.87% C, 4.38% H, and 34.75% O. What is the empirical formula of the compound?
Methylbenzene and 1,2-dimethylbenzene mix to form an ideal solution. At 90oC, the vapor pressure of pure methylbenzene is 400 Torr and that of pure 1,2-dimethylbenzene is 150 Torr.
At 20 degrees C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 52.9 torr at 20 degrees C.
a sample of gas occupies 328 mL at 20 degrees C. What is its volume when the temperature is increased to 45 degrees C.
A gas was enclosed in a rigid-walled container. The initial temperature and pressure were 52°C and 0.55 atm, respectively. If the final pressure were 2.41 atm.
At 27.7mL sample CO2(g) was collected over water at 25.0 degrees celsius and 1.00 atm. What is the pressure in torr due to CO2(g)?
Draw a diagram showing the stratification in a body of water. Label the different layers and describe the type of chemistry (and species) that occurs at each level.
If the pressure of CO2 is 0.550 atm, what concentration of carbon dioxide can be dissolved in water at 0.00C.
Calculate ΔH and ΔStotal when two iron blocks each with mass of 1.00kg, one at 25'C and one at 250'C are placed in contact with each other in an isolated container.
Designing and preparing aqueous buffer solution with the pH indicated.
H2 and Cl2 combine to form HCl. In a gas phase equilibrium mixture of H2, Cl2, and HCl at 300 K, [HCl] = 0.0036 mol/L and [Cl2] = 0.00485 mol/L.
Reduce the production of hazardous waste and encourage recycling and reuse of hazardous materials by charging producers a tax or fee for each unit of waste generated.
Light with a frequency of 7.11 x 10 -14 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light? Answer in units of nm.
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