Determine the ionization energy of an excited state
Determine the ionization energy of an excited state hydrogen atom in which the electron occupies the n = 2level. Hint: The ionization energy is defined as the energy needed to completely remove an electron from an ion, atom or molecule.
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How many hours must be assigned to every activity to maximize number of calories burned? Determine maximum number of calories he will burn?
Determine the numbers of milli grams (mg) of APS are weighed out to make the 1 ml of a 10% (w/v) APS stock solution? Ammonium per sulfate (APS) is used as the initiator of polymerization of acryl amide.
The vapor pressure of H2O is 175 torr at 63.5C, and that of ethanol, C2H5OH, is 400 torr. A solution is made by mixing equal masses of H2O andC2H5OH.
Write down the symbol for this ion (give the symbol for the nucleus and give the ionic charge as a right superscript.) One isotope of a metallic element has mass number 117 and has 67neutrons in the nucleus. An atomic ion has 48 ion has 48 electr
Determine the numbers of mL of acetic acid would you require per liter of solution (with the rest of the volume coming from the acetate solution) to generate a pH of 4.88 where the pKa of acetic acid is 4.76.
Determine the critical angle for the fiber? Approximate the energy loss in the longer cable by employing the reduction in signal amplitude one fiber was 15 cm, and the fiber was 20 m.
Discuss why the p-nitrophenol is stronger acid than phenol itself. Would p-methoxyphenol be a stronger or weaker acid than phenol? Explain.
Write down the reaction for which sulfur trioxide decomposes to oxygen and sulfur dioxide. Imagine that one mole of each gas is placed into a 2 liter flask at a T for which K=1. Determine the moles of sulfur trioxide at equilibrium.
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