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25 resources for "lab techniques 1"

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reflux-with-addition
A reactant is added to the refluxing reaction mixture in a controlled way via an addition...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
soxhlet-extraction
When a compound of low solubility needs to be extracted from a solid mixture a Soxhlet...
TeacherStudent Undergraduate
Subjects: Practical chemistry,Equipment, apparatus &...
distillation
Distillation separates liquids on the basis of them having different boiling points.
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
melting-point-determinati...
The measurement of melting points is a relatively straightforward procedure that is carried...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
vacuum-filtration
When a solid needs to be isolated from a solution it is normally done at a reduced pressure...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
using-a-rotary-evaporator
A rotary evaporator is used to remove large amounts of solvent from solutions at a reduced...
TeacherStudent Undergraduate
Subjects: Equipment, apparatus &...
vacuum-distillation
Vacuum distillation is a distillation carried out at reduced pressure to lower boiling...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
steam-distillation
The extraction of a crude mixture containing water-insoluble material (such as natural...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
heating
There are many instances when heat is needed in a laboratory practical, it is needed to...
TeacherStudent 16 to Undergra...
Subjects: Chemistry in action,Practical...
solvent-extraction
This technique uses two solvents which are immiscible, for example an organic solvent such as...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
recrystallisation
Recrystallisation is a means of purifying solids. If carried out correctly the final product...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
dean-stark-apparatus
There are many equilibrium reactions that yield water as a co-product. It is the co-produced...
TeacherStudent Undergraduate
Subjects: Equipment, apparatus &...
heating-under-reflux
The term 'reflux' describes an arrangement in which a reaction is carried out in a boiling...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
weighing-compounds-using-...
Weighing is done to ensure the correct amount of a reactant is added to a reaction, for the...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
column-chromatography
The separation of mixtures produced in chemical reactions is often carried out by passing the...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
volatile-product-distilla...
A technique to remove a volatile product from a reaction mixture to prevent further reaction...
TeacherStudent 16 to Undergra...
Subjects: Investigative work,Practical...
fractional-distillation
Fractional Distillation is used to separate compounds with boiling points that are close.
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
hot-gravity-filtration
This is the simplest kind of filtration when the solution to be filtered is poured through a...
TeacherStudent 16 to Undergra...
Subjects: Development of scientific ideas,Practical...
cooling-mixtures
Cooling baths are very useful in chemistry labs to control exotherimc reactions. In this...
TeacherStudent Undergraduate
Subjects: Practical chemistry,Equipment, apparatus &...
titration
The addition of one reagent (the titrant) from a burette to another reagent until an...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
thin-layer-chromatography
The technique of Thin Layer Chromatography (TLC) is normally used as an analytical method to...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
drying-liquids
There are many instances when it is necessary to remove traces of water from a solution or...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
standard-solution
A standard solution is a a solution of accurately known concentration prepared from a primary...
TeacherStudent 16 to Undergra...
Subjects: Practical chemistry,Equipment, apparatus &...
running-an-infrared-spect...
Infrared (IR) spectroscopy is a technique which reveals the bonds present in a compound...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...
clamping-quickfit-glasswa...
There are many different ways to assemble apparatus and it is important that you carefully...
TeacherStudent 16 to Undergra...
Subjects: Equipment, apparatus &...