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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: zazjaju on November 28, 2010, 01:56:44 PM

Title: PH calculation of Na2Po3
Post by: zazjaju on November 28, 2010, 01:56:44 PM

What is the pH of 100 mL of a .02000 M solution of Na2Po3?

Please help solve and show work.

Thank you!!!

Title: Re: PH calculation of Na2Po3
Post by: AWK on November 29, 2010, 02:47:16 AM

Something is wrong in your formula Na2PO3

Title: Re: PH calculation of Na2Po3
Post by: zazjaju on November 29, 2010, 09:38:02 AM

It's Na2HPo3... sorry!

Title: Re: PH calculation of Na2Po3
Post by: AWK on November 29, 2010, 10:50:52 AM

Hydrolysis based on K2

Title: Re: PH calculation of Na2Po3
Post by: zazjaju on November 29, 2010, 11:07:44 AM

What do you mean by that?

Title: Re: PH calculation of Na2Po3
Post by: AWK on November 29, 2010, 11:57:03 AM

HPO₃^2–(aq) + H₂O = H₂PO₃^–(aq) + OH^–(aq)