Acids, Bases, and pH Scale

Front

Pure water is _______ on the pH scale.

Back

Neutral

Front

What happens to the pH of a solution when H ions are added?

Back

pH would go down.

Front

Mixing equal portions of an acid and a base should give us a mixture with a pH near ______.

Back

7

Front

On the pH scale, higher numbers indicate ______.

Back

bases

Front

If you have a solution with a pH of 4 and you need to make the solution have a high pH, what would you do?

Back

add base

Front

What is the pH range of acids?

Back

pH less than 7.

Front

What is the pH range of bases?

Back

pH greater than 7.

Front

What is the pH of a neutral solution?

Back

7.

Front

What is the effect of adding a base to an acidic solution?

Back

It increases the pH.

Front

What is the effect of adding an acid to a basic solution?

Back

It decreases the pH.