The duration of this week's lab depends on your students' technique. I hope the below points would help them and you save some time:
- Ask them to use the well plate's lid. It would reduce the amount of waste and they can see the product of their mixture way easier.
- Emphasis to split the work between two partners. I even had groups who split the work between 4 people (two groups).
- Tell them to predict the reactions that wouldn't happen in advance, they can use Q1 as a good reference. This would save them a lot of time.
- The waste goes into special containers and is not neutralized.
Have a good week!