Three Landmarks on One Curve

You'll learnhow to read a titration curve: where the pK_a is hiding, what fixes the equivalence volume, and why the end is not pH 7.

Twenty-five millilitres of a weak acid, a burette of strong base, and a plot that records the pH after every drop. Two points on the curve you are about to draw are worth more than all the rest. Twelve short steps; press Next for each one.

12 STEPS · 6 QUICK CHECKS · HALF-EQUIVALENCE → pK_a · EQUIVALENCE ≠ 7 · v2

a curve with two landmarks · and an ending that is not 7

Before you start

What you're looking at

A burette of strong base over a flask of weak acid, and the pH plotted as it goes in.

The question

When the moles match exactly, where does the pH end up?

Step 1 / 12