|Sep26-08, 09:44 PM||#1|
Biochem Ph Problem
1. The problem statement, all variables and given/known data
Solid Na2HPO4 is dissolved in water. What is the resulting pH of the solution? Relative pka's of phosphate derivaties are ~2, ~7, and ~12.
2. Relevant equations
No equation needed, just look at the species which phosphate would develop.
3. The attempt at a solution
I believe the specified compound would be in equilibrium between one of these species;
H3PO4, H2PO4 (-), HPO4 (-2) and PO4 (-3). The choices are 12, 7, 2, 9, or there is not enough information.
|Sep27-08, 09:46 AM||#3|
Thank you very much! If I understand correctly then the answer would be 1/2 (7 +12) which would be ~ 9 ph?
That is the answer I chose. Thank you.
|Similar Threads for: Biochem Ph Problem|
|Biochem Yeast culture problem||Biology||5|
|Biochem help :(??||Biology||2|