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What is the method of gases change into solid?
the method is calleds sublimation
What is sublimation. How can we use it as a method of separation?
Sublimation is the process where a solid turns into a gas without passing through the liquid state. In separation, sublimation can be used by heating a mixture of substances where one sublimes while the others do not, allowing the separated substance to be collected as a gas and then re-condensed back into a solid.
How can you separate ether from benzophenone?
To separate ether from benzophenone, you can use a simple liquid-liquid extraction method. Since ether is less dense than water and forms a separate layer, you can add water to the mixture, which will dissolve any polar impurities and leave the ether and benzophenone in two distinct layers. Then, carefully decant or use a separatory funnel to collect the ether layer. If needed, further purification can be achieved through distillation, taking advantage of the different boiling points of the two compounds.
Which method is most suitable for separating a mixture of sodium chloride and iodine?
Sublimation is the most suitable method for separating a mixture of sodium chloride and iodine. This is because iodine sublimes at room temperature, meaning it can be converted directly from a solid to a gas without passing through a liquid state, leaving behind the sodium chloride.
How can we purified naphthalene by sublimation?
Naphthalene can be purified by sublimation due to its ability to transition directly from solid to gas without passing through a liquid phase. To perform the sublimation, heat the impure naphthalene in a controlled manner, allowing it to vaporize. The vapor then condenses on a cooler surface, typically a cold glass or metal surface, forming pure naphthalene crystals. This method effectively separates naphthalene from non-volatile impurities that do not sublimate.
How to target fat from specific areas?
It is generally impossible to target fat from specific areas through dieting or exercise. The only method is through surgical procedures such as liposuction.
Is heating a chemical method of separating chemicals?
Heating not; but distillation, sublimation, zone refinig, etc. need heat.
How do you separate the mixture of sulfur from charcoal?
One way to separate sulfur from charcoal is through sublimation. Heat the mixture in a container where sulfur can vaporize and then condense on a cooler surface, separate from the charcoal. This method takes advantage of the difference in sublimation temperatures between sulfur and charcoal.
WHAT IS sublimation of textiles?
Sublimation of textiles is a printing process where heat and pressure are used to transfer dyes onto fabric. The dyes are converted into a gas without passing through a liquid state, which allows them to bond directly with the fibers of the fabric, resulting in vibrant, long-lasting prints. This method is commonly used to create custom designs on polyester fabrics.
How could you seperate benzophenone from a-naphthol?
The melting point for lauric acid is about 45 degrees while it is 121 degrees for naphthol. So, in a mixture repeated cycles of slow warming and cooling should separate out lauric acid from naphthol. You can improve the efficiency by adding a dash of slightly acidic 70% isopropyl alcohol. This will deprotonate the lauric acid while maintaining the proton on naphthol during this process to enhance separation and purification of the two compounds. You could also flat-out distill the two products by maintaining the temperature of the solution at the boiling point of lauric acid to separate it from naphthol.
When is purification by sublimation applicable?
Purification by sublimation is applicable when the compound of interest has a much lower or higher vapor pressure compared to the impurities, allowing for selective purification by converting the compound directly from solid to vapor state and back to solid without passing through the liquid phase. This method is effective for separating volatile compounds from non-volatile impurities or vice versa, and is commonly used in industries such as pharmaceuticals and semiconductors for purifying substances.
Why is crystallization a much better purification technique than simply washing the crystals with cold solvent?
because sublimation is a method of obtaining a product of high purity; it is best adapted to use with small amounts of material; there is little loss of material in sublimation; and the process of sublimation requires less time and transferring.
