Kw and other constants

[Jorja De Jesus 2C]

What does the subscript w mean in Kw? Why do the acid and base constants multiply to get Kw? Also is it a capital or lowercase W?

[sbeall_1C]

The w refers to water, so the equilibrium constant for water is 1.0x10-14. Ka and Kb multiply to Kw because water is neutral. The case of the w (upper case or lower) does not matter, I don't think, it is merely there to indicate this specific constant for water.

[JonathanS 1H]

K_w is the equilibrium constant for the autoprotolysis of water. Because this is equal to the concentrations of OH- times H+, it is also equal to Ka times Kb

[005206171]

Kw is the equilibrium constant of water. Since it’s neutral Ka and kw = 1 x 10^(-7). When multiplied you get 1x 10^-14 (kw value)

[Cavalli_1H]

it represents the equilibrium constant for water

[Ashley Alvarado 2C]

The w in Kw represents the equilibrium constant for water. KA x KB= Kw which is equal to [H30+][OH-].

[Emily Lo 1J]

The Kw is the equilibrium constant for water (the autoprotolysis of water). So the w in Kw is water.

[Jasmine 2C]

Kw is the equilibrium constant for water, and it is always equal to 1 * 10^-14. This can only be applied for conjugate acid-base pairs because the concentration of H+ and OH- the two produces are tied together. If one goes up, the other goes down, thus the conjugate seesaw.

[Jarrett Peyrefitte 2K]

The w for Kw means it is the equilibrium constant for water.

Ka times Kb is also equal to Kw, which equals to [H30+][OH-].

[Gurmukhi Bevli 4G]

Kw is the equilibrium constant for water, and the w subsequently refers to water.