Perhaps I'm overlooking something so simply, but I cannot figure out how my Biochemistry book came up with this specific answer:
[H2PO4^-2]/[HPO4^1-] ratio: 1.58
[HPO4^2-]+[H2PO4^1-] = 20mM
Thus, the book says:
[HPO4^2-] = 12.25 mM
[H2PO4^1-] = 7.75 mM
What the heck am I doing wrong?
20 mM x (1/1.58) = 12.65 mM
[H2PO4^-2]/[HPO4^1-] ratio: 1.58
[HPO4^2-]+[H2PO4^1-] = 20mM
Thus, the book says:
[HPO4^2-] = 12.25 mM
[H2PO4^1-] = 7.75 mM
What the heck am I doing wrong?
20 mM x (1/1.58) = 12.65 mM