Experimental Techniques Flashcards
What is used to measure volume
Measuring cylinders, biurets and pipettes
What is chromatography
Chromatography is a method of separating the constituents of a solution, based on one or more of its chemical properties
How do you calculate the rf value
The distance travelled by the compound divided by the distance travelled by the solvent
What is a locating agent
A substance used to analyze colourless substances in chromatography
What is the boiling point of pure water
100C
Explain filtration
It is a physical separation process that separates solids from liquids
What is the point of chrystallisation
To trap any impurities
What is fractional distillation used to separate
It is used for the separation of two liquids with different boiling points
What is a suitable solvent
Water due to its polarity
What is polarity
It is the distribution of charge over the atoms joined by a bond
