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vera_ewing
 one year ago
Last one
Which of the following statements is true of a solution at pH 7?
A. Ka and Kb are equal.
B. Kw and Kb are equal.
C. Kw, Ka and Kb are equal.
D. Kw and Ka are equal.
vera_ewing
 one year ago
Last one Which of the following statements is true of a solution at pH 7? A. Ka and Kb are equal. B. Kw and Kb are equal. C. Kw, Ka and Kb are equal. D. Kw and Ka are equal.

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sweetburger
 one year ago
Best ResponseYou've already chosen the best response.2Tbh I am not really sure about this one I am trying to think through the relation that is being asked about which is Kw=(Ka)(Kb).

sweetburger
 one year ago
Best ResponseYou've already chosen the best response.2I dont think it could be B or D.

vera_ewing
 one year ago
Best ResponseYou've already chosen the best response.0Either A or C? Which one seems the best?

sweetburger
 one year ago
Best ResponseYou've already chosen the best response.2Im leaning towards A. Because in C. if Kw, Ka, and Kb were all equal then I dont think the numbers would work out correctly. Not really sure though.

Photon336
 one year ago
Best ResponseYou've already chosen the best response.0I believe it's pH = Log[H+] pOH = Log[OH] pH + pOH = 14 pH = 7 right? So that means pOH must also be 7 So from Kw = Ka x Kb Ka = 10^7 kW = 10^14 Kb = 10^7
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