Applied Chem Section 7 Acids and Bases

Front

What is the pH value of slightly basic ocean water?

Back

The pH value of slightly basic ocean water is around 8.

Front

What substance turns red litmus paper blue?

Back

Bases turn red litmus paper blue.

Front

What color does bromphenol blue turn in a strong acid?

Back

Bromphenol blue turns yellow in a strong acid.

Front

What are the properties of acids?

Back

Acids are weak or strong conductors of electricity, clear when phenolphthalein is added, and react with metals to produce hydrogen gas.

Front

What do an acid and a base produce in a neutralization reaction?

Back

An acid and a base produce water and a salt in a neutralization reaction.

Front

Define an acid.

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

Define a base.

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is the pH scale?

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 is a neutral solution?

Back

A neutral solution has a pH of 7, meaning it is neither acidic nor basic.

Front

What is the role of indicators in acid-base chemistry?

Back

Indicators are substances that change color in response to the pH of a solution, helping to identify whether it is acidic or basic.