Chemistry's Impact and Acid-Base Concepts

Front

What is a significant impact of chemistry on human life?

Back

It has significantly increased the average human lifespan.

Front

What is the primary source of sulfuric acid that contributes to acid rain?

Back

Coal-fired power plants

Front

What is a traditional characteristic used to describe acids?

Back

They are excellent at dissolving substances.

Front

According to the Brønsted-Lowry definition, what is an acid?

Back

Anything that donates a proton.

Front

In the reaction HCl + H2O ⇌ H3O+ + Cl-, which species acts as the Brønsted-Lowry base?

Back

H2O

Front

What property of water allows it to act as both an acid and a base in different chemical reactions?

Back

Its amphoteric nature.

Front

What is the primary chemical reaction that leads to the formation of sulfuric acid in the atmosphere?

Back

Sulfur reacting with oxygen to form sulfur dioxide, which then reacts with water and oxygen.

Front

Approximately how much limestone (CaCO3) can be dissolved by the sulfuric acid produced from burning one metric ton of coal containing 3% sulfur? (Assume complete conversion of sulfur to sulfuric acid and complete reaction with limestone. Molar mass of S = 32.1 g/mol, CaCO3 = 100.1 g/mol)

Back

94 kg