BRAINCAKEOrganic Analysis
Revision notes for Organic Analysis in AQA Chemistry (7404). Every lesson in BrainCake comes with R.E.C.I.P.E. recall steps, a quick check and spaced reviews.
- Identifying Functional GroupsA functional group is the atom or group of atoms that gives an organic compound its characteristic reactions.
- Test Tube Tests for Organic CompoundsSimple test tube tests can identify the functional group in an organic compound.
- High Resolution Mass SpectrometryIn a mass spectrum, the peak with the highest m/z value (ignoring small isotope peaks) is usually the molecular ion peak, M+.
- Precise Relative Molecular MassThe precise relative molecular mass of a molecule is the sum of the precise relative isotopic masses of the atoms in its molecular formula, using…
- Infrared SpectroscopyInfrared (IR) spectroscopy is an analytical technique that shows which bonds, and so which functional groups, are present in a molecule.
- Bond Vibrations and IR AbsorptionCovalent bonds are not rigid.
- The Fingerprint RegionThe fingerprint region of an IR spectrum is the region below 1500 cm−1.
- Interpreting IR SpectraTo interpret an IR spectrum, match the main absorptions above 1500 cm−1 to bonds using the data sheet, then decide which functional group fits.
- Infrared Radiation and the Greenhouse EffectThe Earth absorbs radiation from the Sun, mainly visible and ultraviolet, and warms up.
On the specification
- 3.3.6.1 Identification of functional groups by test-tube reactions
- 3.3.6.2 Mass spectrometry
- 3.3.6.3 Infrared spectroscopy