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August 3, 2015

Homework Help: Chemistry

Posted by Anonymous on Tuesday, November 17, 2009 at 3:47pm.

What will be the pH of:
(a)10.0cm3 of an aqueous solution of 0.001mol dm^-3 nitric aicd, HNO3 (aq)?
(b)100cm3 of an aqueous solution of 0.001mol dm^-3 nitric aicd, HNO3 (aq)?
(c)0.02mol dm^-3 of potassium hydroxide solution, KOH (aq)?

For (a) I got 2, (b) 1 and (c) 12.31.
I am not sure if these are right. I used pH=-log[H+]/pH-log[OH-]. How is the volume used?

Thank you in advance for any help!

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