WorksheetsChromatography basics
Total questions: 16
Worksheet time: 13mins
The attraction of one substance to the surface of another is defined as:
absorption
adsorption
desorption
intermolecular attraction
The chemical that is of interest in a chemical analysis is known as the:
analyte
eluent
precipitating agent
reagent
A graph of data that involves two variables; it is used to determine the value of one of the variables. A graph of this type is known as a ...curve.
(a)
The output of a chromatography procedure is known as a:
calibration curve
chromatograph
chromatogram
spectrum
A technique for separating the components of a mixture using a mobile phase and a stationary phase.
chromatography
filtration
gravimetric analysis
titration
What is a chromatographic technique that uses a column for the stationary phase and a liquid for the mobile phase? Write the answer.
(a)
The breaking ofthe attraction between a substance and a surface is known as ...
(a)
The solvent that carries the components that pass through a chromatography column is known as the:
effluent
electrolyte
eluent
mobile phase
The ... phase is the phase that moves over the stationary phase in all forms of chromatography.
(a)
An analysis to determine the identity of a chemical present in the sample of a substance. Paper, TLC and HPLC can all be used for this type of analysis.
(a)
A type of analysis to determine the concentration of a chemical in a sample. Volumetric analysis and HPLC are examples of this type of analysis.
(a)
The time taken for a component to pass through a chromatography column is known as ... time.
(a)
Components that have a greater attraction to the mobile phase than the stationary phase have a (shorter/longer) retention time. (Write the correct word.)
(a)
The phase that the components of a mixture are adsorbed to (mobile/stationary). (Write the correct word.)
(a)
The analytical technique that separates substances by using a layer of a fine powder spread on a glass plate as the stationary phase is:
paper chromatography
thin layer chromatography
column chromatography
HPLC
Component M has a greater attraction to the mobile phase than component X. Component P has a greater attraction to the stationary phase than component X. The retention times, from shortest to longest are:
M, P, X
M, X, P
P, X, M
P, M, X
