'Cl 35' diaporamas de présentation

Mass spectrometry

Mass spectrometry. Detection of ionic species to determine the molecular weight of and obtain structural information on a molecule. Mass spectrometry. ions only detected individual molecules are detected uses isotopic masses not MW. 29. Base Peak. Parent ion. -15. Base peak

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TOPIC D: Spectrometry and Spectroscopy

TOPIC D: Spectrometry and Spectroscopy. Mass spectrometry is used to detect isotopes. mass spectrometer uses an ionizing beam of electrons to analyze a sample of an element by turning atoms into ions. The individual ions are then sorted by mass.

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DNA molecule

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DNA molecule

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Mass of Individual Atoms

Mass of Individual Atoms. Review: Mass of proton = 1.673 x 10 -24 g Mass of neutron = ? Mass of electron = 9.11 x 10 -28 g An atom of K-39, has ____ protons, _____ neutrons, and ______ electrons. Who wants to add up that actual mass?!?!. Mass of Individual Atoms (cont.).

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Moles

Moles. Molar Conversions . How many days are in 1 week? 7 days same type of unit conversion works for moles. How many Cl -1 ions are in 15 moles of MgCl 2 ? 15 mol MgCl 2 2 mol Cl -1 6.02 x 10 23 ions Cl 1- 1 mol MgCl 2 1 mol Cl -1

234 views • 4 slides