to do this you would use filtration- you may find this on bbc bitesize ks3 - basically you have a beaker, a funnel and filter paper, the paper obtains a solid leaving the salt solution to go in the beaker.
i hope this was helpful.
Since a solution of salt in water contains no solids, a filter paper will allow everything to pass through. Only the residual wetness drying out will leave a few tiny crystals. The best way is to let the water evaporate. Do not heat. (The slower the better)
It's not that only alum makes big crystals.. There are so many compounds that can make big crystals. Even Sodium Hydroxide makes very good and big crystals. For crystals you need a uniform arrangement of atoms in space. For big crystals all you need is patience. The slower is the crystallization process the bigger crystals are formed. What industries do is called seeding. They make a good concentrated solution of the compound whose crystals are needed and then they put a crystal of the same compound in the solution. The new crystals form and attach to the crystal making quick and big crystals.
i did a project on this and they grow better in cold
The evidence that the equilibrium shifted when a saturated potassium nitrate solution was cooled is the precipitation of potassium nitrate crystals. Cooling the solution causes a decrease in solubility, leading to excess solute (potassium nitrate) to precipitate out of the solution. This indicates that the equilibrium has shifted towards the solid phase as a result of the change in temperature.
The amount of ammonia in a salt crystal solution can affect the size of the salt crystals by influencing the rate of crystal formation. Higher concentrations of ammonia can accelerate the growth of salt crystals, resulting in larger crystals. Conversely, lower concentrations of ammonia may slow down crystal growth, leading to smaller crystal sizes.
You need to start with a copper compound and react it with an acid to get the salt you want. If you use hydrochloric acid you will get a chloride; if you use nitric acid you will get a nitrate. You asked for copper sulphate so can you decide for yourself which acid you need? You will need to put this in a conical flask and heat it - if you're heating acids you must wear protective goggles - and add some copper oxide. This is black. It will react and form a blue solution. You need to be sure you have used up all your acid so you must use enough copper oxide to have some left over. Stop heating and filter it to get rid of the rest of the copper oxide. You want to get rid of the water now - if you want to be quick you can evaporate it by placing it in an evaporating basin on top of a beaker of boiling water. If you have time you can just leave it to evaporate slowly at room temperature. If you do it this way you will get nicer, bigger crystals. Why do you think this is? Look carefully at your crystals to see what shape they are.
It's not that only alum makes big crystals.. There are so many compounds that can make big crystals. Even Sodium Hydroxide makes very good and big crystals. For crystals you need a uniform arrangement of atoms in space. For big crystals all you need is patience. The slower is the crystallization process the bigger crystals are formed. What industries do is called seeding. They make a good concentrated solution of the compound whose crystals are needed and then they put a crystal of the same compound in the solution. The new crystals form and attach to the crystal making quick and big crystals.
You mean, like the crystals you get when you put a seed crystal of sugar on the end of a string and put the string into a saturated sugar solution? (This is how to make rock candy. It's really cool. You should try it.) The longer you leave the crystals in the saturated solution, the larger they'll get.
When the liquid evaporates quickly, the solid crystals formed don't have enough time to arrange themselves into large crystals. On the other hand, when it evaporates slowly, the solid has lots of time so large crystals form. This can be demonstrated by dripping melted was onto a cold slide and a warm slide and examining them under a microscope.
Underground crystals are bigger where as crystals formed on the surface are smaller.
i did a project on this and they grow better in cold
The evidence that the equilibrium shifted when a saturated potassium nitrate solution was cooled is the precipitation of potassium nitrate crystals. Cooling the solution causes a decrease in solubility, leading to excess solute (potassium nitrate) to precipitate out of the solution. This indicates that the equilibrium has shifted towards the solid phase as a result of the change in temperature.
When there is no more solute can be dissolved in a solution, a saturated solution is obtained. When a hot saturation solution is cooled down the solute will come out in solid form as a crystal. Small crystals will be found in fast cooling. If we hang a small crystal in a h ot saturated solution it will grow bigger when it cools slowly. When there is no more solute can be dissolved in a solution, a saturated solution is obtained. When a hot saturation solution is cooled down the solute will come out in solid form as a crystal. Small crystals will be found in fast cooling. If we hang a small crystal in a h ot saturated solution it will grow bigger when it cools slowly.
The reason why is because of where it comes from in a volcano and how fast it cools. If it cools slowly then it will have bigger crystals because the longer it has to cool the longer the crystals have to grow. So dose that answer your question
Usually, bigger plants do produce bigger seeds.
A slow rate of cooling will typically produce the largest crystals in igneous rocks. This allows more time for crystals to grow and develop before the magma solidifies completely. Rapid cooling results in smaller crystals or no crystals at all (forming volcanic glass).
When liquid rock cools slowly, crystals will be bigger because there is more time for the crystals to grow and develop before the rock solidifies. In contrast, when liquid rock cools quickly, crystals are smaller because there is less time for them to form and grow.
Typically, intrusive crystals are larger than extrusive crystals because intrusive rocks cool slowly beneath the Earth's surface, allowing larger crystals to form, while extrusive rocks cool quickly at the surface, producing smaller crystals.