Is ammonium chloride neutral salt
Ammonium chloride as an acid salt
Here you can see picture 23 from my presentation "Corresponding acid / base pairs".methodic procedure
The basic methodological idea that immediately makes sense to any student is this:
An acid gives off protons. In order for a particle to be an acid, it must have hydrogen atoms, which are also bound to another atom with a polar covalent bond.
A base accepts protons. To do this, the particle must have a lone pair of electrons and also have a very high electronegativity.
The two components of the salt will now be examined under these two aspects. Is the cation an acid or a base? Is the anion an acid or a base? Then it is decided whether the salt forms a neutral, acidic or alkaline solution with water.application
- Is NH4+ an acid? Yes, there is an H atom that is polar bonded to the N atom; in addition, the ion is positively charged, which favors the release of a positive proton.
- Is NH4+a base? No, there is no longer any free electron pair.
- Is Cl- an acid? No, there is no hydrogen atom.
- Is Cl- a base? Yes, but H2O molecules do not give protons to Cl- from.
So one can summarize: The NH4+-Ion is sour, and the Cl--Ion reacts neutrally, so an acidic solution is formed when ammonium chloride is dissolved in water.
Incidentally, the pH value of a 0.1 molar solution of ammonium chloride is 5.1.
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