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Problem- A chemist was called to an abandoned aspirin factory to determine the contents of a badly corroded vat. Knowing that two salvage workers had become ill from breathing the fumes, she put on her breathing apparatus as soon as she noticed an overpowering odor like that of vinegar but much more pungent. She entered the building and took a sample of the contents of the vat. The mass spectrum showed a molecular weight of 102, and the NMR spectrum showed only a singlet at 2.15. Identify the compound.
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Consider a cylindrical container partially filled with ethanol (C2H6O). Using the model in which ethanol vapor pressure is a result of equilibrium between the rate of ethanol evaporation and condensation.
Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 1.505-g sample of Mg metal is added to 150.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. What mass of H2 is formed
Problem- Calculate the pH of a solution prepared by adding .10 mol each NH2OH and HCl to 500ml H2O. Ka of NH2OH = 1.1x10^-6
Draw the complete Lewis Dot Structure, and identify for each molecule the shape, the hybridization on the central atom
A solution of 75.0 g of benzene (C6H6) and 75.0 g of toluene (C7H8) has a total vapor pressure of 80.9 mmHg at 303 K. Another solution of 100.0 g benzene and 50.0 g toluene has a total vapor pressure of 93.9 mmHg at this temperature.
Why is a vapor unlikely to behave as an ideal gas near temperature at which vapor would liquefy?
Question- A particular monochromatic light source emits light with a frequency of 607 THz. What is the wavelength of the light emitted
The heat required to raise the temperature of a large cup of water (for coffee) from room temperature to boiling is approximately 100 kJ. Express this quantity of heat in kilocalories and British thermal units. Show your calculations.
What is the enthalpy of combustion (in kJ/mol) for acetone (CH3COCH3) under standard conditions (water is produced as a liquid)? Use the appendix in your textbook, do not enter units, and answer with 5 significant digits.
a solution is made from 96 g of a nonvolatile solute in 80 grams of water. the solution has a vapor pressure of .312
In a study designed to prepare new gasoline-resistant coatings, a polymer chemist dissolves 6.099 g poly(vinyl alcohol) in enough water to make 100.0 mL of solution. At 25°C, the osmotic pressure of this solution is 0.242 atm. What is the molar ma..
Calculate the specific weight, specific volume, and density of one mole of methane at 100°F and 120 psi absolute
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