What is the best problem to solve for an IB Design Lab on acids and bases?

[sheilalala]

I need some help with developing an idea for my design lab. it is a lab where we must come up iwth a problem to solve on our own. This time we are to discover something new about acids and bases. What would be a good problem? thank you!

 

[symbolipoint]

The two questions for us to know first are, what is the specific course which has this assignment, and what is the exact assignment description?