Agenda
- Calculate the mass you need before touching any glassware
- Investigation: Preparing a Standard Solution — flask, meniscus, mixing
- Swap with another group and check the concentration they claim
- Where the uncertainty actually came from — balance, flask, or technique
- If the calculation stalls: Getting Unstuck
Things to do before our next class
- Label and store your solution properly — you will titrate with it.
- Journal: your concentration with its uncertainty, and which step of the preparation contributed most of it.