1. Lab 1A Discussion

2. Pre-Lab Information Problem/Question: – What was the question we were truly trying to answer in this lab? Education: – What is pH? What is it measuring? – What is a buffer? – Why are buffers important to living things?

3. Pre-Lab Information Hypothesis: – Make sure it relates to the problem/question – IF (independent variable), then (dependent variable) Substances: – Tap water – Egg whites – Potato – Buffer (9.0)

4. Substances Buffer > potato > egg white > tap water Order should be: Buffer > potato > egg white > tap water Why is potato such a good buffer? It grows in the ground, so will see a lot of harsh conditions (variations in pH due to rain, soil, pollution, etc.)