Laboratory techniques — pipetting, titration

What you'll learn

1. 1

   Imagine you're in a lab with a pipette — it's like a fancy straw that sucks up exactly the right amount of liquid. 🧪

2. 2

   Here's a pipette drawing up 5.0 mL of blue liquid. The meniscus (the curved top of the liquid) should sit exactly on the 5.0 mL mark.

3. 3

   What do you look at to read the volume in a pipette?

4. 4

   Let's do a titration step by step — we're adding acid from a burette to an alkali in a flask until the colour changes. 🧪

5. 5

   Now you try — use the burette to add acid until the colour changes. Tap to open/close the tap.

6. 6

   In a titration, what's the name of the point when the colour changes?

7. 7

   If your starting burette reading was 2.0 mL and the final reading was 18.5 mL, how much acid did you use?