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Which is the major contributor to the linewidth, T2 or T2inh? Discuss the assumption that T2=T1 for NMR. This is not true for other types of spectroscopy(electronic for instance).
What are the favored geometrical arrangements for ABn molecules for which the Atom has 2,3,4,5 and 6 pairs of electrons in its valence shell?
Imagine that you have a 6.50 L gas tank and a 4.00 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 115 atm
What is the Haber process (synthesis). Specifically describe the reaction and industrial importance of the product.
What are the similarities between distillation and sublimation. When would you choose one over the other.
Explain in detail why these bacteria don't begin to excrete this metabolite before using up the phenylalanine in the medium.
Explain Buffer Solution and Henderson-Hasselbalch H-H, What is the pH of a solution prepared by mixing 50.00mL of 0.10 M NH3 with 25.00mL of 0.10 M NH4Cl? Assume that the volume of the solutions are additive and that Kb= 1.8 x 10 -5 for NH3.
sample of H20 with a mass of 46.0 grams has a temperature of -58.0 degrees Ceslius. How many joules of energy are necessary to heat the steam from 100.0 degrees celsius to 114.0 degrees
a metal pellet of 100.0 g at 95.0 ordmc is dropped into 218 g of h2o at 23.8 ordmc. if the metal pellet has a heat
Consider the substitution reaction of H2S-BH3 with NH3, which generates two product molecules (ignore the states of matter), assuming that no species exceeds the octet rule. Given the following information:
normal glucose levels in the blood are from 70 to 10 mg glucose per 100 mL of blood. If the level falls too low, there can be brain damage.
apply the variation function x2a-x2 for x between 0 and a to the particle in a box and estimate the ground state energy
A 14.0-g sample of CaCl2 is dissolved in 112 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
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