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1. The 1s--> 2p transition in a hydrogen-like atom occurs at 1.00x106 cm-1.
a. What is the ionization energy of this atom in Joules?
b. If this atom is ionized with light with a wavelength 4.00 nm, what is the de Broglie wavelength of the ejected electrons?
2. The 2p-->1s transition in 4He+ is at 329,211 cm-1. Predict the position in cm-1 of the same transition for 3He+. (4He=2 protons+2 neutrons. 3He = 2 protons + 1 neutron)
Formulate a suitable mechanism to account for the reaction of thionly chloride with carboxylic acids to yield the corresponding chlorosulfite.
Draw both conformers and suggest which of them is stable. Suggest a reason why the unstable conformer is unstable.
a strong acid is generally used to catalyze the fischer esterification of carboxylic acids. what two steps in the
0.02 grams of AgNO3 is dissolved in 1.0 L water. What is its concentration as parts per million
a 25.0 ml bubble is realeased from a divers air tank at a pressure of 4.00 atm and a temperature of 11 c. what is the
A certain person had a brain that weighed 1.40 kg and contained 4.60 x 10^10 cells. Assuming that each cell was completely filled with water (density = 1.00 g/mL) calculate the length of one side of such a cell if it were a cube.
rank the given solutions in aquous form from lowest to highest boiling point 0.5 m nacl 1 m kcl 0.5 m bacl2 1 m
What are these Lewis Structures?
The pH of a 0.010 mol L-1 solution of a weak monoprotic acid is 2.09 at 25oC. What is the pKa for this acid
the balloon reaches an altitude of 100m, where the pressure was 658 mmHg and the temperature was -8c. what was the volume in liters of the ballon at these conditions?
why is an acetyl group added to aniline making acetanilide and then removed to regenerate the amine group in
An organic substance has an enthalpy of vaporization of 29.0 kJ/mol. The compound has a vapor pressure of 524 mm Hg at 25 °C. At what temperature is the vapor pressure equal to 115 mm Hg?
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