Acids & Bases Review

Front

What is the hydroxide ion?

Back

The hydroxide ion (OH^-) is a negatively charged ion formed when a water molecule loses a hydrogen ion (H⁺). It is a key component in basic (alkaline) solutions.

Front

What does a pH of 8.6 indicate about a solution?

Back

A solution with a pH of 8.6 is considered a base, as it is above the neutral pH of 7.

Front

Which substance is more acidic than lemon juice?

Back

Hydrochloric acid is more acidic than lemon juice.

Front

What is the name of HF?

Back

HF is called hydrofluoric acid.

Front

What is the pH of a 0.001 M solution of HCl?

Back

The pH of a 0.001 M solution of HCl is 3.

Front

Define an acid.

Back

An acid is a substance that donates hydrogen ions (H⁺) in a solution, resulting in a pH less than 7.

Front

Define a base.

Back

A base is a substance that accepts hydrogen ions (H⁺) or donates hydroxide ions (OH^-) in a solution, resulting in a pH greater than 7.

Front

What is the pH scale?

Back

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

Front

What is a neutral solution?

Back

A neutral solution has a pH of 7, meaning it has equal concentrations of hydrogen ions (H⁺) and hydroxide ions (OH^-).

Front

What is the relationship between pH and hydrogen ion concentration?

Back

The pH of a solution is the negative logarithm of the hydrogen ion concentration: pH = -log[H⁺].