To describe the preparation of 2N NaOH for use in adjusting pH.
- Weigh 40 g NaOH and add to a clean 500 ml bottle.
- Add 500 ml DI water and a stir bar. Stir on a stir plate for 30 minutes or until solids are dissolved.
- Label the container with the contents, date and a batch number.
- Store the closed container at room temperature for up to one year.