Kw

[AGaeta_2C]

Is K_w the equilibrium constant for water or the ionization constant?

[cassidysong 1K]

Kw is the equilibrium constant.

[Daria Azizad 1K]

Both, as they refer to the same thing.

[Kate Swertfager]

Equilibrium constant and ionization constant of water are the same thing in this case.

[Jaci Glassick 2G]

Both. They are the same thing.

[Jasmine Vallarta 2L]

Kw = 1.0 x 10^-14

[Caroline Beecher 2H]

Kw refers to the equilibrium constant for water and/or the ionization constant. Also as Dr. Lavelle discussed further today in class, for acids you can call it the acidity, ionization, or dissociation constant.

[405318478]

In lecture Lavelle said that Kw is a constant, 1.0 x 10^-14. I'm looking at a homework problem, and it gives kw as 2.1 x 10^-14, could someone clarify the meaning of the value of Kw? The homework question im referring to is 6A.21

[Max Madrzyk Dis 4G]

Kw is a constant and I believe and it is the equilibrium constant for water and it equals 1.0x10^-14.

[Zoe Gleason 4F]

In lecture Lavelle said that Kw is a constant, 1.0 x 10^-14. I'm looking at a homework problem, and it gives kw as 2.1 x 10^-14, could someone clarify the meaning of the value of Kw? The homework question im referring to is 6A.21

In that problem, the Kw is different because it was found at a different temperature. The value from Kw in class is at 25C. A change in temperature will result in a change of K.

[Jasmine Fendi 1D]

They are the same thing, and Kw=Ka*Kb=10^-14

[504939134]

They both essentially mean the same thing, and you can use them interchangeably.

[Madeline Phan 1E]

Kw is the equilibrium constant for water.

[Omar Selim 1D]

Kw = 1.0 *10^-14 is the equilibrium constant for water, which is also defined as Kw = Ka * Kb. The two definitions you gave are interchangeable for the most part

[Nathan Rothschild_2D]

Kw is the equilibrium constant for water and at 25 C is 10^(-14), but if the equation doesn't specify the temperature, can we assume that the reaction is taking place at 25 C?

[705121606]

They are the same value, just keep in mind that this value changes at different given temperatures. The one we use most often is 1.0 x10-14 at 25C.

[705121606]

Kw is the equilibrium constant for water and at 25 C is 10^(-14), but if the equation doesn't specify the temperature, can we assume that the reaction is taking place at 25 C?

I believe so, if it was at a different temperature, that temperature would have to be specified.