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Question- An electron in a hydrogen atom is excited from the ground state to the n=5 state. Decide whether the following statements are true or false?
A. n=5 is the first excited state
B. It take more energy to ionize (remove) the electron from n=5 then from the ground state
C. The electron that is farther from the nucleus (on average) is n=5 than in the ground state
D. The wavelength of light emitted when the electron drops from n=5 to n=1 is longer than that from n=5 to n=2
E. The wavelength the atom absorbs in going from n=1 to n=5 is the same that emitted as it goes from n=5 to n=1
It is not a question in the book, so I just need the full solution of deriving!
Problem- Assume that blood is mostly water. The Henry's law constant for N2 in water at 300 K is 86,000 atm. The hydrostatic pressure acting on a diver is 1 atm at the surface, and increases by approximately 1 atm for every 33 ft of depth.
The reaction makes more lime at highertemperatures. The reaction goes to completion at 1200. The equilibrium lies far to the right at roomtemperature.
This solution was back-titrated with a .0440 M Ga3+ solution until all the EDTA reacted requiring 14.0 ml of the Ga3+ solution. What was the original concentration of the V3+ solution
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A water sample contains 118mg/L of bicarbonate ion, 19mg/L of carbonate ion, and has a pH of 9.5. What is the alkalinity of this water expressed as mg/L of CaCO3? Answer: 130mg/L as CaCO3.
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Depict a standard energy diagram how does it change when change the concentration of a substance? Collision theory but don't know
Calculate the number of collisions required to slow a neutron from an energy of 2.85 MeV to a thermal energy of 0.025 eV, using a moderator with an average logarithmic energy decrement of .955.
A 250.0 -mL buffer solution initially contains 2.5X10^-2 M of HCHO2 and 2.5X10^-2 M of NaCHO2. What mass of the correct reagent should you add. pH 4.10
The EPA limit for lead in the water supply is 15 parts per billion by mass. Calculate the number of lead ions present in 1.00kg of water that is at the EPA limit for lead.
The HHV of the Fuel is 13,380 BTUs/lb. The air that is utilized is ambient at 78 F and 40% relative humidity. This plant is designed to utilize 22% excess air. Compute both cases and show to your boss with computation whether the dew point is diff..
Using the data shown in the table, calculate the pressure exerted by 1.00 moles of CO2 confined in a volume of 3.00 L at 450. K. Compare the pressure with that predicted by the ideal gas equation.
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