Acids, Bases and pH Scale

Front

What is an electrolyte?

Back

An electrolyte is a substance that, when dissolved in water, produces a solution that can conduct electricity.

Front

What pH range indicates a basic solution?

Back

A basic solution is indicated by a pH range of 7.1 to 14.

Front

In the Bronsted-Lowry theory, what is a base?

Back

A Bronsted-Lowry base is a substance that accepts protons (H+ ions).

Front

How does the hydrogen ion concentration change when pH increases from 5 to 7?

Back

The hydrogen ion concentration decreases by a factor of 100.

Front

What pH value typically indicates a weak acid?

Back

A weak acid is typically indicated by a pH value around 6.

Front

What is the pH scale and its significance?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What happens to the conductivity of a solution when an electrolyte is dissolved in it?

Back

The conductivity of the solution increases, allowing it to conduct an electric current.

Front

What is the relationship between pH and hydrogen ion concentration?

Back

pH is inversely related to hydrogen ion concentration; as pH increases, hydrogen ion concentration decreases.

Front

What is the difference between strong and weak acids?

Back

Strong acids completely dissociate in water, while weak acids only partially dissociate.

Front

What is the formula for calculating pH?

Back

pH = -log[H+], where [H+] is the concentration of hydrogen ions in moles per liter.