20 likes | 135 Views
Weak Acid pH Curve. Henderson Hasslebach Equation: At first [salt] is very low, [acid] is high. As reaction proceeds, initially log [salt]/[acid] changes dramatically and hence so does pH But as [salt] and [acid] approach parity log [salt]/[acid] changes only slightly and hence so does pH.
E N D
Weak Acid pH Curve Henderson Hasslebach Equation: • At first [salt] is very low, [acid] is high. • As reaction proceeds, initially log [salt]/[acid] changes dramatically and hence so does pH • But as [salt] and [acid] approach parity log [salt]/[acid] changes only slightly and hence so does pH.