Strong/Weak Acids and Bases, pH

What is the main difference between strong acids and weak acids?

• Strong acids have a lower pH than weak acids

• Weak acids are colorless while strong acids are colorful

• Strong acids fully dissociate in water, while weak acids only partially dissociate.

• Strong acids are less reactive than weak acids

Give an example of a strong acid and a weak acid.

• Hydrochloric acid (HCl) and acetic acid (CH3COOH)

• Carbonic acid (H2CO3) and hydrofluoric acid (HF)

• Phosphoric acid (H3PO4) and citric acid (C6H8O7)

• Nitric acid (HNO3) and sulfuric acid (H2SO4)

Explain the concept of strong bases and weak bases.

• Strong bases completely dissociate in water, while weak bases only partially dissociate.

• Strong bases only partially dissociate

• Weak bases completely dissociate in water

• Strong bases are less reactive than weak bases

Provide an example of a strong base and a weak base.

• Sodium hydroxide (NaOH) is a strong base, while ammonia (NH3) is a weak base.

• Hydrochloric acid (HCl) is a strong base

• Potassium hydroxide (KOH) is a weak base

• Carbon dioxide (CO2) is a strong base

How is the pH scale used to measure acidity and alkalinity?

• The pH scale is used to measure acidity and alkalinity by indicating whether a solution is acidic (pH < 7), neutral (pH = 7), or alkaline (pH > 7).

• The pH scale measures temperature instead of acidity and alkalinity.

• The pH scale measures the concentration of water in a solution.

• The pH scale only measures acidity, not alkalinity.

What is the significance of pH in everyday life?

• pH is crucial for determining water safety, pool maintenance, and cleaning product effectiveness.

• pH is irrelevant for health and safety

• pH only matters for scientific experiments

• pH has no impact on daily activities

How does the pH scale range from acidic to alkaline?

• The pH scale ranges from acidic to alkaline by going from 0 to 12.

• The pH scale ranges from acidic to alkaline by going from 0 to 10.

• The pH scale ranges from acidic to alkaline by going from 0 (most acidic) to 14 (most alkaline).

• The pH scale ranges from acidic to alkaline by going from 1 to 15.