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4 Cards in this Set

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  • Back


absorption of inferred causes covalent bonds to vibrate

frequency of vibrations can identify presence of a bond

mass spectrosity

technique for measuring particles accurately

most elements have more than 1 isotope

gives accurate isotopic mass

= Mr x abundence + Mr x a........



the mass spectrum for an organic molecule highest peak is the molecular ion peak gives you the Mr of the compound

caluclating % yeld

calculate number of moles of starting material this will be the theoretical maximum

calculate number of moles of your product this is actual number of moles

=actual number of mole

--------------------------------------- x 100

theoretical number of moles

atom econimy

molar mass of desired product / sum of molar masses of all products x100