CHEM UN1604 Final: Final Exam

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31 Jan 2019
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Five additional review study problems for the final exam un1604. In an atomic absorption experiment, the characteristic electronic transitions can be used to detect the presence of a specific element and even determine the amount of it with great accuracy. For this experiment the sample is in the gas phase --the sample is pyrolyzed and vaporized. This is a gold standard method for determination of lead meaning that its accuracy and precision is among the best of all methods. C) m(g) + e- m+(g) + e- D) m(g) + hv m+(g) + 2e: none of the above, use the first ionization energy for lead, 716 kj/mole, to estimate a value for. Note that zeffective does not need to be an integer, but here we will round to the nearest integer: 2, 4, 78, 80, 82, suppose that lead atoms (pb, neutral) have strong absorption lines at 283. 3nm.

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