Kw

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Olivia Young 1A
Posts: 60
Joined: Fri Sep 28, 2018 12:24 am

Kw

Postby Olivia Young 1A » Mon Jan 14, 2019 11:07 pm

What does Kw represent? We used this term in lecture today concerning water, but I didn't know the specific meaning of Kw.

Cody Do 2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: Kw

Postby Cody Do 2F » Mon Jan 14, 2019 11:16 pm

Kw refers to the ionization constant of water. When we learned it specifically in class, Kw at 25 degrees Celsius is 1.0 x 10-14. This means that at 25 degrees Celsius, the concentration of H3O+ and OH- are equal. Thus, Kw = [H3O+][OH-] = [1.0 x 10-7][1.0 x 10-7] = 1.0 x 10 x -14.

Henry_Phan_4L
Posts: 68
Joined: Fri Sep 28, 2018 12:24 am

Re: Kw

Postby Henry_Phan_4L » Tue Jan 15, 2019 1:33 pm

Kw is like [H3O+] and [-OH] combined, which equals 1.0 x 10-14


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