RoseMarie Gallagher and Paul Ingram Solutions for Chapter: Acids and Bases, Exercise 1: Q

Phenolphthalein is an indicator. What does that mean?

What does the $\mathrm{pH}$ value $9$ tell you about the solution?

What does the $\mathrm{pH}$ value $4$ tell you about the solution?

What does the $\mathrm{pH}$ value $7$ tell you about the solution?

What does the $\mathrm{pH}$ value $1$ tell you about the solution?

What does the $\mathrm{pH}$ value $10$ tell you about the solution?

What does the $\mathrm{pH}$ value $3$ tell you about the solution?

What colour is universal indicator, in an aqueous solution of sugar? Why?