The stamin of an mountain or basic is related to the extent of dissociation in solution:

- a strong acid or basic is fully dissociated

- a weak acid or base is partially dissociated

So thus we will have 4 possible types the acids and also bases:

1. Weak Acid

2. Strong Acid

3. Weak Base

4. Solid Base

Also, every of this acids and bases will certainly dissociate in systems to give different species.

You are watching: Is nh4+ acidic or basic

1. Weak acid Dissociation eg CH3COOH


CH3COOH is a weak acid and dissociates partially in solution (as shown with reversible arrow) to form H+ and CH3COO- ions.

Since this is a reversible process, CH3COO- can accept H+ to type back CH3COOH.

Therefore the nature the CH3COO- is simple and we contact CH3COO- the conjugate basic of CH3COOH.

2. Strong Acid Dissociation eg HCl


HCl is a solid acid and also will dissociate fully (as indicated with complete arrow) in solution to type H+ and Cl-ions.

Since this is one irreversible process, Cl- has actually no tendency to accept H+ and kind back HCl.

Therefore the nature of Cl- is neutral.

3. Weak basic dissociation eg NH3

NH3 is a weak base and also dissociates partly in systems (as indicated with reversible arrow) to form OH- and also NH4+ ions.

Since this is a reversible process, NH4+ deserve to donate H+ to kind back NH3.

Therefore the nature the NH4+ is acidic and also we speak to NH4+ the conjugate mountain of NH3.

4. Strong base dissociation eg NaOH

NaOH is a solid base and will dissociate totally (as suggested with full arrow) in equipment to kind OH-and Na+ ions.

Since this is an irreversible process, Na+ has no tendency to donate H+ and form back NaOH.

Therefore the nature that Na+ is neutral.

See more: In What Direction Does A Buoyant Force Act? Science Chapter 13

So in summary:

- weak acid will certainly dissociate to offer conjugate base

- weak base will dissociate to offer conjugate acid

- strong acid will dissociate to give a neutral ion

- strong base will certainly dissociate to offer a neutral ion

These concepts are fundamental and very important in Ionic Equilibria.

Check out this video clip lesson come learn more about acids and bases and also their dissociation in solution!

Topic: Ionic Equilibria, physical Chemistry, JC, H2, A Level Chemistry, Singapore

You can likewise view this video lesson with screenshots and detailed explanation in ~

Do inspect out the complying with for much more video lessons:Physical Chemistry Videos in ~ Level Chemistry Videos in ~

If you are searching for H2 Chemistry Tuition, do consider taking up mine classes in ~ Bishan. More info at

Maverick Puah the Chemistry Guru

Top JC Chemistry Tutor and also YouTube educator in Singapore



More indigenous Maverick Puah the Chemistry Guru

Top JC Chemistry Tutor and YouTube education in Singapore