Identifying a salt

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Alexis Elliott 1J
Posts: 28
Joined: Wed Sep 21, 2016 2:59 pm

Identifying a salt

Postby Alexis Elliott 1J » Sun Nov 27, 2016 9:30 pm

I was wondering what exactly qualifies as a salt. I am confused because so many things are referred to as a salt and I am not quite sure what they all have in common.

Thanks!

Navi Sidhu 1F
Posts: 25
Joined: Wed Sep 21, 2016 2:59 pm

Re: Identifying a salt

Postby Navi Sidhu 1F » Sun Nov 27, 2016 9:39 pm

Taken from http://study.com/academy/lesson/what-is-salt-in-chemistry-definition-formula.html because they have a clear, concise definition:

In chemistry, a salt is an ionic compound which is made up of two groups of oppositely charged ions. The ion with a positive charge is called a cation, and the one with a negative charge is called an anion. How many of each type of ion the salt has is important because the compound must have an overall electrical charge of zero - that is, an equal balance between positive charge and negative charge.

Daniel Namgoong 3I
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Joined: Wed Sep 21, 2016 2:56 pm

Re: Identifying a salt

Postby Daniel Namgoong 3I » Sun Nov 27, 2016 10:15 pm

Simply put, salt is an ionic compound composed of cation and an anion.

Julie Barreto 3A
Posts: 21
Joined: Wed Sep 21, 2016 2:56 pm

Re: Identifying a salt

Postby Julie Barreto 3A » Tue Nov 29, 2016 9:28 pm

so, how would you know if a salt is an acid or base? like: NH4Cl

Katherine_Zhuo_3B
Posts: 23
Joined: Wed Sep 21, 2016 2:57 pm

Re: Identifying a salt

Postby Katherine_Zhuo_3B » Wed Nov 30, 2016 11:38 am

So looking at NH4Cl, we have the cation NH4+ and anion Cl-. In a solution, the concentration of Cl- does not change, nor does it affect the pH of the solution. However, NH4+ is a weak acid, and so it will want to react with the water molecules to form NH3 (the more stable molecular form), and H3O+.


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