PES 21 and 22

What does pH measure?

• strength of an acid

• strength of a base

• strength of both acids and bases

• concentration of H+ ions

As the pH of a solution gets lower, the solution becomes more _____.

• acidic

• basic (or alkaline)

• neutral

• ionic

Predict the products of this reaction.

HCl + Ca(OH)2

• NaCl

• CaCl2

• CaCl2 + H2O

• H2O

How many times can you retake this quiz?

• as many times as you want

• unlimited

• to infinity and beyond

• ALL these answers are correct

The pH of 4 solutions were measured in a lab. Which solution is the most acidic?

• 
• 
• 
• 

The pH of 4 solutions were measure in a lab. Which of the solutions is the most basic (alkaline)?

• 
• 
• 
• 

Which terms refer to how well an acid or base ionizes in a solution?

• strong or weak

• concentrated or dilute

• neutral or charged

• acid or base

Which term refers to the amount of acid or base dissolved in a solution?

• concentrated or dilute

• strong or weak

• neutral or charged

• acid or base

A chemical reaction between an acid and a base, forming a salt and water is known as ____.

• ionization

• concentration

• neutralization

• animation

Hydrochloric acid (HCl) is known as a strong acid. Which statement describes a strong acid after dissolving in solution?

• few H+ ions: many acid molecules

• many H+ ions; few acid molecules