An example for an equation for the reactions used to separate and recover m-nitroaniline benzoic acid and naphthalene is RCO2H + NaOH RCO2 - Na+ (water soluble salt) + H2O (eq. 1)
werde
by sublimation
One way is to slurry the solid mixture with water. The ammonium chloride will dissolve and the naphthalene will not. Ammonium chloride can then be recovered by evaporating the water solution of it that is formed.
By evaporation (under vacuum) of the naphtalene or filtration of the sand from this mixture
Iron filings removed magnetically. Water will dissolve sodium chloride and suspend sand. Sand can be filtered out of the solution, and salt reovered by evaporation of water. Naphthalene can be removed separately if necessary by solution of mixture in alcohol.
werde
by melting them through distillation
Sublimation
by sublimation
Use a magnet to remove the iron filings... Warm (do not boil) the remaining mixture to evaporate the naphthalene.
no because both sublime on heating
Filtration because it says that it can separate fine solid from liquids.
To separate naphthalene balls from sodium chloride, simply add water until all the sodium chloride is dissolved. Then either filter, or just pour off the solution, and the naphthalene balls will be left behind. Naphthalene is very insoluble in water, and sodium chloride is very soluble in water.
One way is to slurry the solid mixture with water. The ammonium chloride will dissolve and the naphthalene will not. Ammonium chloride can then be recovered by evaporating the water solution of it that is formed.
Dry ice sublimes
By evaporation (under vacuum) of the naphtalene or filtration of the sand from this mixture
yes but only by fractional sublimation (sublimating point of these substances are different)