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Use the free energies of formation given below to calculate the equilibrium constant (K) for the following reaction at 298 K.
2 HNO 3(aq) + NO(g) ? 3 NO 2(g) + H 2O(l) K = ??G° f (kJ/mol) -110.9 87.6 51.3 -237.1
a) 1.15 × 10-9b) 5.11 × 10-4c) 0.980d) 1.02e) 8.71 × 108
What is the magnetic field strength of the NMR system in Tesla? Show all equations and explain. c) Are the resonances of A and B well enough resolved to be able to measure the relative concentrations by NMR? Explain reasoning.
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What is the atomic mass of unknown element X if it has the following isotopic composition.
The carbon-14 in a living organism is constant until the organism dies, after which carbon-14 decayss with first order kinetics and a half life of 5730 years. Suppose a bone from an ancient human contains 19.5%of the C-14 found in living organisms..
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