The Flask That Will Not Say How Strong It Is

You'll learnhow a volume read off a burette becomes the concentration of the acid in the flask.

There is 25.0 mL of hydrochloric acid in the flask and nobody knows how concentrated it is. No instrument on the bench measures that directly, so you react it away with a base you do know and count what it took. Twelve short steps; press Next for each one.

12 STEPS · 6 QUICK CHECKS · 0.100 M NaOH INTO 25.0 mL OF UNKNOWN ACID · v4

a burette, a flask, and one number nobody can see

Before you start

What you're looking at

A flask holding 25.0 mL of hydrochloric acid, and a burette of 0.100 M NaOH above it.

The question

How does a volume read off the burette become the acid's concentration?

Step 1 / 12