Definitions

1. The dissociation constant is a measure of the extent of dissociation.
2. The dissociation constant is commonly used to describe the affinity between a ligand (L) (such as a drug) and a protein (P) i.e.
3. The dissociation constant is usually denoted K d and is the inverse of the affinity constant.
4. An acid dissociation constant is a particular example of an equilibrium constant.

Indicator

1. The dissociation constant K d is used as indicator of the affinity of the ligand to the receptor.
2. The acid dissociation constant K a is an indicator of the acid strength: stronger acids have a higher K a value (and a lower p K a value).

Special Case

1. In the special case of salts, the dissociation constant can also be called an ionization constant.

Dissociation

1. Monoprotic acids have one acid dissociation constant, K a, which indicates the level of dissociation in water.
2. The dissociation constant is a measure of the extent of dissociation.

Dissociation Constant

1. The acid dissociation constant (pK a) values of all alkanes are above 60, hence they are practically inert to acids and bases (see: carbon acids).
2. The value of K w at STP is 1.0×10 −14. The self-ionization constant of water, K w, is thus just a special case of an acid dissociation constant.
3. The equilibrium constant for this dissociation reaction is known as a dissociation constant.

Categories

1. Dissociation
2. Equilibrium Constant
3. Encyclopedia of Keywords > Nature > Chemistry > Bases
4. Alkanes
5. Encyclopedia of Keywords > Nature > Chemistry > Acids
6. Books about "Dissociation Constant" in Amazon.com
   

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