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Q: Why are mixtures to be separated by chromatography heated first before separated?
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How do you separate the mixture solute?

Mixtures of lipids can be separated using a variety of techniques. The simplest method is thin layer chromatography. Others include solid-phase extraction and high-performance liquid chromatography.


When sulphur and iron are heated in a china dish why do they stick to it?

Because it has been melted and it only can be separated in chemical method


What are 4 methods of separating the parts of a mixture?

1) magnetic attraction: Used to separate particles out based on magnetic properties2) distillation: Used to separated gases with different boiling points3) sifting: A form of filtration used to remove larger particles from smaller ones4) centrifuge: Used to remove suspended particles from solution5) chromatography: Used to separate constituents of mixture based on chemical properties such as polarity6) Through filtration: allows smaller particles to pass without allowing larger ones through7) sedimentation: see centrifuge8) Gravity separation: is an industrial method of separating two components from a suspension or any homogenous mixture.9) Electrophoresis: used to separate molecules based on size or size-to-charge ratio


Why the NaOH solution is heated before adding BaCl2 in the two solutions method for determination of purity of NaOH sample?

Why the NaOH is heated before adding in BaCl2 for determination of purity of NaOH sample?


How would you separate sand from water as a mixture?

Not sure what is meant by mixtures? But, the sand and water can be heated to evaporate off the water, which can be condensed back into water. This will leave the sand behind.

Related questions

How do you separate the mixture solute?

Mixtures of lipids can be separated using a variety of techniques. The simplest method is thin layer chromatography. Others include solid-phase extraction and high-performance liquid chromatography.


What procedure did you use to separate plant pigments?

Place leaf in beaker and heat with Bunsen burner until water has discolored and boiled, then place leaf in test tube filled methylated spirits and place in same beaker as before with the burner turned OFF. Methylated spirits boils at around 80 degrees Celsius so when placed in heated water it will boil. This process will separate the chlorophyll (pigment) in the leaf.


what are the 4 ways of separating mixtures?

5 ways to separate mixtures are distillation, filtration, condensation/distillation, Evaporation, chromatography, centrifuging and magnetism.Chromatography - To separate different coloured dyes. The dyes travel up the chromatography paper at different distances before they cannot remain in solution. The more soluble dyes move further up than the less soluble ones, hence separating from each other.Distillation - to separate and collect a liquid from a solution of a soluble solid. The solution is heated in a flask until the liquid boils. The vapour produced passes into the condenser where it is cooled and condenses to a liquid. The pure liquid (distillate) is collected in a beaker.Evaporation - This method is suitable to separate a soluble solid from a liquid. If the solution is heated, the liquid evaporates leaving the solid behind.Fractional Distillation - This is a special type of distillation used to separate a mixture of liquids. Different liquids boil at different temperatures. When heated, they boil off and condense at different times. The apparatus features a fractionating column, which ensures that only the liquid boils at its boiling point will pass into the condenser.Filtration - To separate an insoluble solid from a liquid. The solid remains in the filter paper and the liquid goes through the paper into the beaker.Some of the example mixtures that can be separated using the above mentioned techniques:(1) separating dyes in inks, or chlorophyll in plants (ethanol as solvent) - chromatography;(2) separating sand from water - filtration;(3) separating ethanol and water - fractional distillation;(4) separating water from ink - simple distillation;(5) separating salt from water - evaporation


What are the different ways of separating of mixtures?

5 ways to separate mixtures are distillation, filtration, condensation/distillation, Evaporation, chromatography, centrifuging and magnetism.Chromatography - To separate different coloured dyes. The dyes travel up the chromatography paper at different distances before they cannot remain in solution. The more soluble dyes move further up than the less soluble ones, hence separating from each other.Distillation - to separate and collect a liquid from a solution of a soluble solid. The solution is heated in a flask until the liquid boils. The vapour produced passes into the condenser where it is cooled and condenses to a liquid. The pure liquid (distillate) is collected in a beaker.Evaporation - This method is suitable to separate a soluble solid from a liquid. If the solution is heated, the liquid evaporates leaving the solid behind.Fractional Distillation - This is a special type of distillation used to separate a mixture of liquids. Different liquids boil at different temperatures. When heated, they boil off and condense at different times. The apparatus features a fractionating column, which ensures that only the liquid boils at its boiling point will pass into the condenser.Filtration - To separate an insoluble solid from a liquid. The solid remains in the filter paper and the liquid goes through the paper into the beaker.Some of the example mixtures that can be separated using the above mentioned techniques:(1) separating dyes in inks, or chlorophyll in plants (ethanol as solvent) - chromatography;(2) separating sand from water - filtration;(3) separating ethanol and water - fractional distillation;(4) separating water from ink - simple distillation;(5) separating salt from water - evaporation


What is similar to baking powder?

bicarbonate of soda.It produces carbon dioxide when heated in damp cake mixtures.


Is Ceramic is an alloy?

no. alloys are mixtures of metals. Ceramics are formed from clays that have been heated and partly vitrified


What is the apparatus called for containing liquid mixture for heating?

There are many kinds of liquid mixtures, and many kinds of containers in which such mixtures can be heated, which would include such things as pots, flasks, cauldrons, alembics, etc.


Why when you mix 2 elements together you can often separate them again quite easily?

Mixtures can be separated easily, liquids by distillation, gases can be made into a liquid , and then heated gently to tap the gases off ( also called distillation) solids are a little more difficult and depend on the mixture.Compounds are much harder to separate because they are chemically bonded together.They can be separated by electrolysis but this takes a large amount of energy.


Is heated sulfur and iron fillings is substance or mixtures?

Heating sulfur with iron fillings lead to the formation of iron sulfide - a chemical compound.


Is tomato an element compound or mixture?

It is a mixture.


Is it true or false iron is separated from oxygen by cooling iron ore?

False. The ore is heated (smelting)


When sulphur and iron are heated in a china dish why do they stick to it?

Because it has been melted and it only can be separated in chemical method