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A) sketch this process using the nucleus-electron potential energy curve, showing photon energy, the initial energy and the KE as r=infinity B) What is the relative kinetic energy between the electron and proton after ionization, that is r=infinity? C) Assume that the electron has all the kinetic energy in part (B) what is the de Broglie wavelength associated the electrons motion at r= infinity?
A 15.0--mL unknown sample of aqueous acetic acid, CH3COOH(aq), was titrated using 0.800 M NaOH. If the titration endpoint was found to be 20.0 mL.
When sodium carbonate reacts with hydrochloric acid, the carbonic acid that is formed immediately breaks down into carbon dioxide and water.
Calculate the molarity of the 25.0 mL sample of 0.100 acetic acid which was diluted with 25.00 mL H2O
An aqueous antifreeze solution is 55.5% ethylene glycol by mass. the density of the solution is 1.071 g/cm3. calculate the molality. calculate the molarity. calculate the mole fraction.
If solar radiation is 1010 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 for solar radiation.
Understanding the basics of thermal chemistry and The Second Law of Thermodynamics indicates that a system
Calculate the molarity of each of the following solutions(a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution.
A 4.80 g nugget of pure gold absorbed 298 J of heat. What was the final temperature of the gold if the initial temperature was 24.0°C? The specific heat of gold is 0.129 J/(g·°C).
What weight of Pb(NO2)2 wil have to be dissolved in one liter of water to prepare a 100ppm Pb2+ solution.
A solution containing 100g of an unknown substance and 900g of water. The solution has a Freezing Point of -3.33*C. What is the molar mass of the substance?
What is the PH after .15 mol of NaOH is added to .050 mol of propanic acid and ,080 M of sodium propanoate with a ka of 1.3x10^.5
a sample of nitrogen gas occupies 1.55 l at 27.0c and 1.00atm. what will be the volume be at -100.0 C and the same pressure
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