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Physical Chemistry
calculate the mass of 400 mL of CO2 collected over water at 30 degrees celcius and 749 mm Hg, The vapor pressure of water at 30 degrees celcius is 31.8 mm Hg
Physical Chemistry
sodium crystallize in bcc unit cell. calculate the approx number of unit cells in 9.2g of sodium.
Physical Chemistry
Describe the different types of transitions that can lead to absorption of visible light. For each, (1) describe the nature of the absorption, i.e. what are the states like and the nature of the transition (this is the most important question), (2) give the typical energies of the absorption, (3) indicate how intense they are, and (4) describe how long lived the excited states are.
Physical Chemistry
An 8.00 L sample of neon gas at a temperature of 23 °C exerts a pressure of
7.2 atm. If the gas is compressed to 2.00 L and the temperature is raised to 225 °C, what will the new pressure be?
7.2 atm. If the gas is compressed to 2.00 L and the temperature is raised to 225 °C, what will the new pressure be?
Physical Chemistry
hello could you please tell me the answer of this question..it was asked in an exam of mine:
Which one of the following can flow?
Gelatin or Emulsion or Paste or Jelly
Which one of the following can flow?
Gelatin or Emulsion or Paste or Jelly
Physical Chemistry
how would you prepare 50ml of 0.001 M potassium dichromate dissolved in water.
Physical Chemistry
Why does steam condense to liquid water even though this entropy change is unfavorable?
Physical Chemistry
A buckey ball is a large molecule comprised of 60 carbon atoms arranged in a shape something like a hollow sphare 0.71nm in diameter. Imagine that we create a beam of bockeyballs all moving at the same speed v. what is the maximum value that v can have if the de Broglie wavelength of the buckeyball beam is to be at least 10 times the size of the buckeyball (so that we might actually be able to display interference of the buckballs) ?
Physical Chemistry
who has invented oxygen gas
Physical Chemistry
A mixture of helium and neon gases is collected over water at 28.0°C and 456 mmHg. If the partial pressure of helium is 240 mmHg, what is the partial pressure of neon? (Vapor pressure of water at 28°C 5 28.3 mmHg.)
