Wednesday
September 3, 2014

Homework Help: chemistry

Posted by LaurenM on Wednesday, March 30, 2011 at 2:54pm.

Hi,

The problem is:
"Calculate the concentration of OH- and the pH value of an aqueous solution in which [H30+] is 0.014M at 25C. Is this solution acidic, basic, or neutral?"

I have calculated the OH- concentration to be: 7.1 X 10^-14

When I calculate the pH (using H30+), I get a pH of .85. Is that possible? If I calculate using OH-, I get a pH of 13.15. With such widely different answers, I want to be sure I am doing this right.

This is an online class, so no lecture to rely on for help! Thanks!

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