Identify the half-equivalence point of the weak base- strong acid titration curve in the above graph.
Identify the half-equivalence point of the weak base- strong acid titration curve in the above graph.
Homework Answers
After determining equivalence point, half equivalence point can be determined because it's exactly halfway between equivalence point and origin on X- axis. pH doesn't change much at this point.
Equivalence point = midpoint of the steep curve i.e. (3+7)/2 = 5
Volume corresponding to equivalence point is 25 ml
Midpoint of 0- 25ml (on x axis) = (0+25)/2 = 12.5
pH corresponding to 12.5ml volume ~ 9
Half-equivalence point = 9
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Identify the half-equivalence point of the weak base- strong acid titration curve in the above graph.
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acid with a lower pKa, and titration of a weak acid with a higher
pKa. Discuss with the class why the titration curve for weak acids
increase more rapidly early in the titration than do stronger...
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