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a) An electron moving around the Pi system of a benzene ring is another example of a particle on a ring system. What is the expression for the energy difference between the lowest energy state and the first excited state of the benzene Pi system? Please leave your answer in terms of variables and constants; do not substitute.
b) If the radius of a benzene ring is 120 pm, what is the energy of the lowest energy transition (in units of nm) for benzene?
Concentrated HCl is 36.5% HCl by mass and has a density of 1.18 g/mL.What is the molality?What is the molarity?
Exposure to high doses of microwaves can cause damage. Estimate how many photons, with wavelength = 12 cm, must be absorbed to raise the temperature of your eye by 3 degrees celcius
280- flask contains pure helium at a pressure of 762 . a second flask with a volume of 485 contains pure argon at a
under what conditions of pressure and temperature do real gases most closely approximate ideal-gas behavior?a name the
A sample of neon has a volume of 780 mL when it is at a pressure of 751 mmHg. What will be the volume when the pressure is increased to 1389 mmHg?
Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 3.2 g of methane react with 12.8 g of oxygen to produce 8.8 g of carbon dioxide?
If we inject 120.0 mL of liquid helium and allow the entire system to warm to room temperature (25°C), what is the pressure inside the bottle
The following data were collected for the reaction of tbutylbromide (CH3)3CBr) with hydroxide ion at 55 degrees Celsius: equation:
When 0.062 moles of ammonium sulfate ((NH4)2SO4) are dissolved in enough water to make 200 milliliters of solution, how many ammonium ions are present.
What is the net redox reaction that occurs when Pt comes into contact with acidic KMnO4
The pressure exerted on a 240 mL sample of hydrogen gas at instant temperaure is increased from .428 ATM to.724 ATM. What will the final volume be for the sample be?
What individual atoms or functional groups could you add to the carbons to make the molecule hydrophobic?
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