What kind of substance can be dissolve endothermically?
404739
Dissolving Ammonium Nitrate (NH4NO3) in water is a very endothermic reaction.\n\nNH4NO3 (s) --H2O--> NH4+ (aq) + NO3- (aq)\n\nThis reaction is used in cold packs due to the fact that it is a spontaneous process (negative value for ∆G) and endothermic (positive value for ∆H).
1143443
Able to be dissolved by water.
761616
One that will ideally:\n1) dissolve the component that you wish to collect but not the others. Then you can do a filtration, collect the filtrate and evaporate off the solvent to get back the component that you want.\nOR\n2) dissolve all those that you don't wish to collect but not the component that you want. Then you can do a filtration and collect the component that you want as the residue.\n\nHope this helps :)
480971
acetates are ionic, and will more easily dissolve in water than an oil. thats your best bet.
258162
The smaller the particle size, the greater the surface area per volume of each particle, and therefore, the faster it dissolves in the solvent.\n\nBest wishes.
707391
It's soluble because in water it dissociates into the sodium cation and benzoate anion,  as someone else stated it's an ionic compound, so  the extent of its solubility depends on the degree of ionisation/dissociation, which is predominantly an aqueous event
1025445
You're not going to easily deploymerize it. You may have a chance of dissolving it though. Look up its solubility parameter and choose a solvent with the same value of solubility parameter.
31201
I think you mean a salt SOLUTION.\n\nA solvent can dissolve things. Nail varnish remover is a solvent for nail varnish. Water can dissolve many things (but not nail varnish).\n\nThe thing that gets dissolved is called the solute; for example nail varnish.\n\nThe nail varnish remover dissolves the varnish to make a solution.\nSolvent (remover) + solute (varnish) = a solution.\n\nNow try it for water and salt to make a salt solution.
831776
A few are:\nMg, Zn, Al, Fe, and Cu.  They will dissolve at different rates according to the activity series of the metals.
977460
Fe(NH4)2(SO4)2 .6H2O is highly insoluble in non polar organic solvents like chloroform, dichloromethane, etc. Might be slightly soluble in alcohols. Better you dissolve it in minimum amount of water (make highly saturated solution) and add drop by drop alcohol  in a period of time and keep aside without shaking. Crystals will grow slowly.\nIt might be helpful.
798471
Assuming a pure substance, (this method will not work on mixtures).  \n1. Dissolve in Carbon disulphide.  (The compound is now banned in schools)\n2. Allow to evaporate in a fume cupboard.\n3. The presence of yellow rhombic like crystals is a test for S.\n4. Melt a sample and do a MP test.\n5. Melt a few grammes and allow to cool in air.  Needle like crystals will be formed.
512002
Yup, non-polar solvents.  If acetone, alkanes, or toluene don't work, then go with petroleum ether(hist. ligroin) that dissolves alot of things.
320284
It is not possible.  Observe the chemical equation:\nAg2SO4(s) + AgNO3(s) --> Ag2SO4(s) + AgNO3(s)\n\nIn order for a substance to dissolve, it must be in an aqueous solution.
905525
In general smaller particles have more surface area so the solvent can solvate and pull molecules away from the bulk crystal more efficiently.  \n\nThe key to solubility is solvent access to the solid material. \nOn a surface of a particle only the outermost part can be solvated so if there is a lot of surface area in one sample compared to another, the large surface area to volume ratio particles will dissolve more efficiently.
109122
Second answer has some misunderstood spellings.\n\nSolvent is the substance which dissolves.\n\nSolute is the substance which is dissolved and\n\nSolution is the end mixture aof the solvent and the solute.\n\nThere is always a reference for better solubility of a solvent with that of other.\n\nYou can say A is better solvent than B because it dissolves more substances.\nIn this respect you select a number of solutes and get try to dissolve in both solvents.\n\nYou can say A is better solvent for a substance S because A dissolves more quantity of S than solvent B\nIn this respect you take equal volumes of the solvents and two equal volumes of the solute one to dissolve in each solvent. The solvent which gets more amount dissolved is better solvent for the solute than the other one.\n\nIt is just possible that A is better solvent in terms of quantity of a substance dissolved and B is better solvent for another substance \nOR A is better solvent for one substance but B is better solvent in number of of substances it can dissolve.
296334
Things generally become more soluble at lower temperatures, and less soluble at higher temperatures.
113437
extract it with an appropriate solvent. it could be water, alcohol, or maybe hexane. this depends on the solubility of the substance your after. then you could freeze dry it to remove the solvent and all your left is the powder form.