Lab 2

Question 1

What are the steps of the scientific method (and what do they entail)?

Answer 1

Observation, ask (answerable) questions, hypothesis (answers question) (if), prediction (expected result if hypothesis is correct) (then), experiment (controled test to gather data), and conclusion (compare data to prediction, hypothesis supported/unsupported).

Question 2

What is a buffer?

Answer 2

A buffer is a chemical system that prevents a large change in pH.

Question 3

What is the pH scale measuring?

Answer 3

Hydrogen concentrations. Therefore, a lower pH reading means increased acidity meaning an increased availability of H ions and at neutral the rate of hydrogen ion binding is equal to hydrogen ion releasing.

Question 4

What does a slope tell us about pH?

Answer 4

It tells us if the pH of a substance changes and if so how much. The closer to zero the slope the better the buffer.