14. Acids and Bases

What is the difference between an acid and a base?

Many allergy medications contain antihistamines, compounds that contain amine groups (R-NH₂, where R refers to an organic functional group). Would you expect these compounds to be acidic, basic or neutral? Explain. One over-the-counter product lists the active ingredient as 'diphenhydramine HCl.' What does this designation mean?

How does normality compare to molarity for monoprotic and polyprotic acids?

What is the difference between a monoprotic acid and a diprotic acid? Give an example of each.