/sci/ - Science & Math

>>	Anonymous Thu May 27 09:09:00 2010 No.1035572 [View] File: 30 KB, 319x302, 1274192813108.jpg [View same] [iqdb] [saucenao] [google] >>1035568 >implying existence

>>	Anonymous Thu May 20 04:53:18 2010 No.979573 [View] File: 30 KB, 319x302, 1274192813108.jpg [View same] [iqdb] [saucenao] [google] >>979568 Can god tell me how fucking magnets work?

Anonymous Tue May 18 10:26:44 2010 No.965546 [View]
File: 30 KB, 319x302, sp.jpg [View same] [iqdb] [saucenao] [google]

chem help /sci/
having trouble with ONE QUESTION. i'm not asking you to do my homework. If someone could be s kind as to tell me how i should go about this that would be great. I will tell you what i think i need to do and you can tell me if im an idiot or not. thanks.

Q. Given the following acid dissociation constants: Ka (HF)=7.2x10^-4
Ka(HCN)=4.0x10^-10
determine the equilibrium constant for the reaction below.
HCN+F^- <--> CN^- + HF

so what i've done is said ka of HCN is 4.0x10^-10 and Kb of F- is Kw/Ka.

I dont know how to connect these two to make an overall equilibrium constant

please help, do some /sci/

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