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What method is used to obtain a concentrated solution of ethanol from a dilute solution of ethanol dissolved in water?
To obtain a concentrated solution of ethanol from a dilute ethanol-water solution, distillation is commonly used. This process leverages the difference in boiling points between ethanol (approximately 78.4°C) and water (100°C). By heating the mixture, ethanol vaporizes first, allowing it to be collected and condensed back into liquid form, resulting in a higher concentration of ethanol. This method is efficient and widely employed in both laboratory and industrial settings.
How do you obtain iodine from a mixture of powdered iodine and ammonium chloride?
Iodine is not soluble in water but soluble in organic solvents; ammonium chloride is soluble in water. Method 1: dissolving of the mixture in water, filtering, washing of the filter, recovery of iodine from the filter Method 2: dissolving of the mixture in chloroform, filtering, recovery of iodine from the solution by air evaporation at room temperature
How do you obtain iodine from a mixture of sodium chloride and iodine?
Iodine is not soluble in water but soluble in organic solvents; sodium chloride is soluble in water. Method 1: dissolving of the mixture in water, filtering, washing of the filter, recovery of iodine from the filter Method 2: dissolving of the mixture in chloroform, filtering, recovery of iodine from the solution by air evaporation at room temperature
How can we obtain potassium nitrate which is free of soil?
A simple method is to filter the aqueous solution; after this the solution is heated to obtain crystallized KNO3.
Is zinc acetate soluble in ethanol?
Zinc acetate is not easily solved in ethanol, so it is necessary to add one of this stabilizer such as DI water, MEA , DEA , TEA to obtain a completely clear and transparent solution .
Is it possible to have an absolute alcohol from ninety percent ethanol using fractional distillation?
No, it is not possible to achieve absolute alcohol (100% ethanol) through fractional distillation of a 90% ethanol solution. Fractional distillation can only separate the components present in the solution, not create new ones. To obtain absolute alcohol, additional methods such as azeotropic distillation or molecular sieves are needed.
Which method would be most suitable for the separation of a mixture of salt solution and sand to obtain the salt solution?
The most suitable method for separating a mixture of salt solution and sand to obtain the salt solution is simple filtration. The sand is retained by the filter paper while the salt solution passes through, resulting in the separation of the two components.
How to obtain pure water and ethanol from a mixture of sea water and ethanol?
You would use distillation, in which the ethanol and water will boil at different temperatures.
What is the difference between the graphical and numerical methods of finding the solution of an equation?
The graphical method is often approximate but can be applied to any function. If done on a computer, the region surrounding the solution can be enlarged to obtain more accurate estimates. A numerical method will give an exact result is an analytical solution is possible. If not, the solution will depend on the numerical method used and, sometimes, the starting "guesstimate".
How can you separate salt from a solution of salt in water?
Distillation would be the most effective method. In this manner, you can obtain both the distillate and the residue.
How could you obtain sugar crystals from the sugar solution without losing the ethanol?
By heating ethanol is evaporated and sugar remain as a solids.
How do you separate a mixture of iodine salt and sand?
First heat the mixture; the iodine will sublime and turn to a vapor which can be collected. Then add water to the remaining salt/sand mixture; the salt will dissolve but the sand will not. Finally, evaporate the water to obtain the solid salt.
