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Problem- Calculate the heat absorbed and the work done on a system of 5.00 mol of an ideal gas as it expands irreversibly at constant temperature (298kk) from a pressure of 1.0 atm to 1.00 atm. The external pressure is held constant at 1.00 atm.
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one contains 0.2 mol pbch3coo2 the second contains 0.1 mol na2s and the third contains 0.1 mol cacl2 . what is the
What is the hardness of this mineral? What is the specific gravity of this mineral? show your calculations. Using all these properties, identify this mineral?
a 2.00-g sample of white solid was vaporized in a 345-ml vessel. if the vapor has a pressure of 985 mmhg at 158degc
Cyclopentane had nine isomers.
Which of the following pairs would NOT interact to produce an attractive/favorable weak interaction within a proteins 3D structure at physiologic pH.
Identify the spectator ions that will form when aqueous solutions of sodium carbonate and silver nitrate are mixed. Answer a. Na+, NO3-, and Ag+ b. Na+ and CO32- c. Ag+ and NO3- d. Na+ and NO3- e. Ag+ and CO32-
Using data from the thermodynamic quantites at 298.15 K, calculate delta H^degree, delta S^degree, and delta G^degree at 298K for each reaction. Show that delta G^degree = delta H^degree - T(deltaS^degree)
what metal cations form sulfide precipitates in basic solution in qual scheme after the above cations have been removed. Qualitativley explain, why the pH of the sulifide solution effects which cations precipitate.
How much ethylene glycol must be added to your car's cooling system along with 5.0 kg of water to obtain a freezing temperature of -15 oC. The freezing point depression constant of water
potassium hydrohen phthalate khc8h4o4 functions as monoprotic acid. if a 1.46 g sample of impure khc8h4o4 requires 34.3
The world burns approximately 9.0x10^2 kg of fossil fuel per year. Use the combustion of octane as the representative reaction and determine the mass of carbon dioxide
The vapor pressure of benzene is 53.3 kPa at 60.6°C, but it falls to 51.5 kPa when 19.0 g of a nonvolatile unknown organic compound is dissolved in 500 g of benzene. Calculate the molar mass of the compound.
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