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WorksheetsSTOGS Y13 Gas Chromatography
Total questions: 13
Worksheet time: 8mins
Aarav is working on a science project where he needs to separate and identify the compounds in a mixture. Which method should he use? (a)
Titration
Chromatography technique
Gravimetric technique
Spectroscopy technique
In a chemistry lab, Henry, Benjamin, and Priya are working on an experiment. They need to identify the __________ that moves analyte through the column into the detector.
Mobile Phase
Stationary Phase
Liquid Phase
Liquified Phase
Specific time for analyte to pass thru the system from inlet to detector known as......
Complete Time
Reaction Time
Analysis Time
Retention Time
Every component have differential affinity, chemical structure & _________temperature when interact with column, thus separation occur at specific retention time
Boiling Point
Freezing Point
Cloud Point
Cut Point
Benjamin, Alexander, and Muhammad are working on a science project involving Chromatography. They are discussing what the mobile phase can be made of. What could be their conclusion?
It can be made of Solid or Liquid
It can be made of Liquid or Gas
It can be made of Gas only
It can be made of Liquid only
What is Eluent?
Is a Liquid solution
Is a Liquid Solution that is a result from Elution
It is a solvent used for separation of absorbed material from stationary phase
None of the above
Sophia, Evie, and Samuel are working on a chemistry project. They are discussing different types of Liquid Chromatography. Samuel mentioned a few types, but Sophia pointed out that one of them is not a column-type Liquid Chromatography. Which one did Sophia point out?
Gel Permeation
Ion Exchange
Liquid-Solid
Paper
A known concentration of internal standard, is added to both calibration and samples to compensate random and systematic error
TRUE
FALSE
Aarav, Daniel, and Priya are working on a chemistry project. They need to choose a material for the stationary phase in their chromatography experiment. Which one should they choose?
Methanol
Silica gel
Hexane
Matilda is working on a science project where she needs to identify an unknown compound. She remembers learning about a certain factor in class that could help her. What was that factor called?
Retention factor
Polarity factor
None of the above
1. Which of the following is used to inject sample into the column of gas.
Gas tight syringe.
Micro-syringe
Rotary sample valve
Solid injection syringe.
4. Ava, Oscar, and Freya are conducting a science experiment. They observe that in the stationary phase of their experiment, certain characteristics of molecules come into play. Which statement is TRUE about this phase?
The ____ volatile molecules move ____ in the stationary phase.
less, faster
more, faster
less, slower
more, slower
9. George, Evie, and Kiara are working in a chemistry lab. They are using gas chromatography for their experiment. Can you help them identify the RIGHT sequence of sample following into the gas chromatography?
From sample to sample inlet, stationery phase, column and detector.
From sample to sample inlet, column, stationery phase and detector.
From sample to sample inlet, detector, column, and stationery phase.
From sample inlet to column, stationery phase and come to detector
