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If salt water is poured through a filter will salt be trapped on the filter?
Wiki User
∙ 12y ago
Imagine salt as a giant lattice of positively charged sodium atoms and negatively charged chloride atoms. When undissolved, this giant salt lattice is unable to pass through filter paper owing to its immense size.
Now, recall that water is made of 2 Hydrogen atoms (which is slightly positive) and 1 Oxygen atom (which is slightly negative). When salt is dissolved, the slightly positively charged hydrogen atoms in water works to pull away the negatively charged chloride. Likewise, the slightly negatively charged oxygen atoms in water pulls away the positively charged sodium atoms. In essence, what this means is that the giant salt lattice is being "torn apart" by water into smaller and smaller bits to the point whereby the individual atoms are able to pass through the filter paper.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoA special filter must be used, typically reverse osmosis, but yes salt can be removed from water by filtering.
Wiki User
∙ 14y agothe salt dissolves into the water and if you wait the salt will pile again but it's distributed around the water and that is what allows it to pass throught a filter
Wiki User
∙ 9y agoSalt goes through a filter because the salt doesn't mix with the powder
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true
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