neutralisation reaction Watch

fares22
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when an acid reacts with an alkali to form salt and water, does this reaction happen inside of the water since the h+ and oh- ions need to be displaced or does it just happen without any water added and just the alkali and acid

Please clarify
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Ohm0009
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Just alkali and acid. But most acids you use are already dissolved in water.
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fares22
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(Original post by Ohm0009)
Just alkali and acid. But most acids you use are already dissolved in water.
so if the acid is dissolved in the water then it already has produced the H+ ions. and when the alkali is added to the acid and water OH- ions are dissociated and water is formed with a salt okay!


what would be the case for bases as they don't dissolve in water so how are their OH- ions produced?

Also could you explain what acid salts are. Thank you for your help!
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Ohm0009
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(Original post by fares22)
so if the acid is dissolved in the water then it already has produced the H+ ions. and when the alkali is added to the acid and water OH- ions are dissociated and water is formed with a salt okay!


what would be the case for bases as they don't dissolve in water so how are their OH- ions produced?

Also could you explain what acid salts are. Thank you for your help!
If a base doesnt dissolve in water it wont react with the acid as it has to be aqueous.

e.g. HCl + NaOH --> NaCl + H2O

The aqueous acid donates a H+ ion and the aqueous alkali donates a OH- ion. This forms water. The other two react to form a salt.
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fares22
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(Original post by Ohm0009)
If a base doesnt dissolve in water it wont react with the acid as it has to be aqueous.

e.g. HCl + NaOH --> NaCl + H2O

The aqueous acid donates a H+ ion and the aqueous alkali donates a OH- ion. This forms water. The other two react to form a salt.
NaOH is a base so how does it react with an acid to form water?
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Mho9000
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(Original post by fares22)
NaOH is a base so how does it react with an acid to form water?
(Im the same guy)
NaOH is a base so when it's aqueous it splits into Na+ and OH-. The Na+ reacts with Cl- to form NaCl salt. The OH- from NaOH reacts with H+ from HCl to form H2O
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fares22
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(Original post by Mho9000)
(Im the same guy)
NaOH is a base so when it's aqueous it splits into Na+ and OH-. The Na+ reacts with Cl- to form NaCl salt. The OH- from NaOH reacts with H+ from HCl to form H2O

So are all bases alkaline i.e. they can dissolve in water?
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Mho9000
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(Original post by fares22)
So are all bases alkaline i.e. they can dissolve in water?
No, some bases cant dissolve in water. The ones that don't dissolve in water dont split to form OH- and metal+ ions so they cant react with the acid
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fares22
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(Original post by Mho9000)
No, some bases cant dissolve in water. The ones that don't dissolve in water dont split to form OH- and metal+ ions so they cant react with the acid

Okay but in my textbook it says how bases neutralise acids and accept protons. how do they still neutralise
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Mho9000
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(Original post by fares22)
Okay but in my textbook it says how bases neutralise acids and accept protons. how do they still neutralise
Bases neutralise acids because it forms salt and water. All salts and water have a neutral pH, so it is neutralised. Also a proton is just a H+ ion (the things that acids donate and alkalis receive)
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