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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: stmoney on December 04, 2006, 04:53:27 PM

Title: Calc pH and Concentrations
Post by: stmoney on December 04, 2006, 04:53:27 PM

The pOH of a solution is 11.34. calculate the pH and concentration of [OH-] and [H+].

I know pOH = 14 - pH, so...
11.34 = 14 - pH --> pH = 2.66

To find the [H+] and [OH-] concentration..

[H+] = 10^-pH, therefore the [H+] concentration is simply 10^-2.66 or .002, correct?

 and is the [OH-] just 11.34?

Title: Re: Calc pH and Concentrations
Post by: Borek on December 04, 2006, 05:05:09 PM

Quote from: stmoney on December 04, 2006, 04:53:27 PM

[H+] = 10^-pH

OK. But check significant figures in your answer.

Quote

and is the [OH-] just 11.34?

Compare with above.