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Experiment 18 Chromatography
Terms in this set (14)
a non-covalent interaction bonded with a hydrogen atom and another very electronegative atom to produce an unusually strong and directional dipole-dipole interaction
the spreading of one substance through a space occupied by one or more substances
a combination of 2 or more substances in which the substances retain their identity
a molecule that does not posses a net dipole moment
a molecule that has a net dipole moment
a homogeneous mixture of 2 or more substances
a laboratory technique used to separate components of a mixture
to obtain good separation in chromatography, what factor must be maximized?
component migration differences of all components
when liquid mobile phase is more polar than the stationary phase
calculate the Rf value for compounds on a developed chromatogram
distances spot traveled/distance solvent travels from spotting line
which component is most attracted to the stationary phase?
why is water considered to be the stationary phase in paper chromatography, and not the paper?
the hydroxyl groups in the cellulose paper are responsible for the hydrogen bonding of water
to obtain good separation in chromatography, what factor must be minimized?
which component is most attracted to the mobile phase?