Smooth Operater
10-06-2006, 02:10 AM
is there difference between pka and pH? I wonder what is the difference? does pH always equal to pKa? Thanks!
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View Full Version : is there difference between pka and pH? Smooth Operater 10-06-2006, 02:10 AM is there difference between pka and pH? I wonder what is the difference? does pH always equal to pKa? Thanks! jhuplaw 10-06-2006, 05:37 AM pka is the acid dissociation constant and ph is a measure of acidity. the only relationship between the two that i can remember is the henderson-hasselbalch equation: ph = pka + log(A-/HA) haavoc 10-09-2006, 10:24 AM pH = pKa when concentrations of the conjugate base and its conjugate acid are equal, i.e., pH = pKa + log(1) --> pH = pKa b/c log(1) = 0 |