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August 2, 2015

Homework Help: chemistry

Posted by Cliff on Sunday, December 12, 2010 at 9:23pm.

Hi !

Could you please help me to see through this problem.

*I know it's asking me to find the hydrogen ion concentration in a bleach sample.

*If the pH meter reads 9.55..this suggest to me this is a base. Maybe,I can use the equation:
pOH = -log (OH^-)
= -log (9.55)
= 0.980.
That's the answer I get.
If I plug that value into the equation: pH + pOH = 14
pH + 0.980 = 14
=13.0

I might have gone the wrong way. Please help me.

Thank You.

I'm really not sure where to go with this problem. I missing something;I hope you can help me.

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