Unit 11 BR #6: Acid Base Theory and the pH Scale

Front

What is an Arrhenius base?

Back

An Arrhenius base is a substance that increases the concentration of hydroxide ions (OH^-1) in aqueous solution.

Front

What ions indicate that a compound is a base according to the Arrhenius model?

Back

Hydroxide ions (OH^-1) indicate that a compound is a base.

Front

What is the pH level of bleach?

Back

The pH level of bleach is approximately 13.

Front

Which substance is more acidic than lemon juice?

Back

Hydrochloric acid is more acidic than lemon juice.

Front

What is the only substance with a neutral pH of 7?

Back

Water is the only substance with a neutral pH of 7.

Front

What is the pH range of acids?

Back

The pH range of acids is from 0 to 7.

Front

What is the pH range of bases?

Back

The pH range of bases is from 7 to 14.

Front

What is the pH of a strong acid like hydrochloric acid?

Back

The pH of a strong acid like hydrochloric acid is typically around 1.

Front

What does a pH of 14 indicate?

Back

A pH of 14 indicates a strong base.

Front

What is the relationship between pH and hydrogen ion concentration?

Back

As pH decreases, hydrogen ion concentration increases, indicating higher acidity.