distillation and chromatography Flashcards
(14 cards)
What is distillation?
A process used to separate components of a liquid mixture based on differences in boiling points.
True or False: Chromatography is used to separate mixtures based on their movement through a stationary phase.
True
Fill in the blank: In distillation, the liquid that is collected after boiling is called the ______.
distillate
What is the main purpose of chromatography?
To separate and analyze the components of a mixture.
Which technique would you use to purify a liquid by heating and cooling?
Distillation
Multiple Choice: Which of the following is NOT a type of chromatography? A) Paper B) Gas C) Distillation D) Thin Layer
C) Distillation
What is the stationary phase in chromatography?
The phase that does not move and interacts with the substances being separated.
True or False: Simple distillation can separate liquids with very close boiling points.
False
Name one application of distillation.
Purifying drinking water.
What is the mobile phase in chromatography?
The phase that moves and carries the substances to be separated.
Fill in the blank: In fractional distillation, ______ are used to separate mixtures with closer boiling points.
fractionating columns
Which substance would likely travel farther in a chromatography experiment: a more soluble substance or a less soluble substance?
A more soluble substance
What is the main difference between simple distillation and fractional distillation?
Simple distillation is used for separating liquids with significantly different boiling points, while fractional distillation is for those with closer boiling points.
Multiple Choice: Which of the following is a common use of chromatography? A) Cooking B) Analyzing ink C) Measuring temperature D) Building structures
B) Analyzing ink
