Separate sand, salt, water through whatever means necessary

In summary, to separate sand, salt, and water in a practical experiment, you can first heat the mixture to dissolve the salt, then cool the water to decrease the solubility of salt, and finally filter out the sand and boil off the water to separate the salt. Adding salt can lower the melting point of water, allowing for easier separation.
  • #1
aek
82
0
Hi,
i have this practical experiment coming up.
i need any help available.
i need to separate sand, salt, water through whatever means necassary.
Thanks in advance.
 
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  • #2
Hmm how about first heat the mixture so salt will dissolve but sand will not then filter the sand out. Then cool the water near 0, which decreases the solubility of salt in water. Then you can filter the salt too.
 
  • #3
i don't understand how sand will not filter out sand. And when water is near 0, how are you going to filter it out, it's ice!
 
  • #4
aek said:
i don't understand how sand will not filter out sand.

This makes no sense. The sand will be less soluble in the water than the salt, so if the sand is not dissolved, you will be able to filter it out.

aek said:
And when water is near 0, how are you going to filter it out, it's ice!

No, it's not. Pure water freezes AT 0 degrees Celcius, (at atmospheric pressure) not NEAR. With added salt, the melting point is dropped even further, this is why we grit our roads.

In any case, to separate water from salt, you should probably just boil the water off (obviously once you've removed your sand by filtration).
 

Related to Separate sand, salt, water through whatever means necessary

1. How do you separate sand, salt, and water?

The most common method for separating sand, salt, and water is through a process called filtration. This involves pouring the mixture through a filter, which will trap the sand while allowing the salt and water to pass through.

2. Can you use evaporation to separate sand, salt, and water?

Yes, evaporation can also be used to separate sand, salt, and water. By heating the mixture, the water will evaporate, leaving behind the salt and sand. This method is more time-consuming compared to filtration, but it can be effective if the mixture is small.

3. Is it possible to use a magnet to separate sand, salt, and water?

No, a magnet cannot be used to separate sand, salt, and water as salt is not magnetic. A magnet can only be used to separate magnetic substances from a mixture.

4. How do you separate large quantities of sand, salt, and water?

If you need to separate large quantities of sand, salt, and water, a centrifuge can be used. This machine spins the mixture at high speeds, causing the sand to separate from the salt and water due to their different densities.

5. Can you separate sand, salt, and water without any special equipment?

Yes, you can separate sand, salt, and water using a simple technique known as hand picking. This involves carefully picking out the sand by hand, leaving behind the salt and water. However, this method is only practical for small amounts of mixture.

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