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Title: analytical Question pH
Post by: yekidota on November 06, 2010, 11:08:35 PM

I was wondering if i could get some help with these questions.
Number 2 would be a good start.
http://img100.imageshack.us/img100/4103/capturedg.jpg
Thanks alot.

Title: Re: analytical Question pH
Post by: uma on November 07, 2010, 07:55:09 AM

Please show me your work on these questions and I will help you in that

Title: Re: analytical Question pH
Post by: yekidota on November 07, 2010, 11:36:56 AM

Question 3 :
CH3COOH is a weak acid

Acitivity of C = (0.01 CH3COOH)(ActivityCoefiictent)
pOH = -log[(0.01 CH3COOH)(ActivityCoefiictent) ]
pH = 14-pOH

Question 4 :
Since ph is already givin we cannot write a charge balance
But the mass balance will be :
CaF2(s) +Ca2 = 2F + F- + CaF+CaF2(s)

Title: Re: analytical Question pH
Post by: yekidota on November 08, 2010, 12:08:07 AM

Correction tom y last post, weak acid then it should be ph not pOH

and question 5 , i already solved it.

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Chemistry Homework Help => General Chemistry => Topic started by: yekidota on November 06, 2010, 11:08:35 PM