Acetic Acid and Carbon Dioxide Concepts

The video tutorial demonstrates the properties of acetic acid, also known as ethanoic acid. It explains that acetic acid is a weak acid with a carboxylic group and is commonly found in vinegar. The tutorial covers the pungent smell of acetic acid, its solubility in water, and its reaction with sodium bicarbonate, which produces carbon dioxide gas. Experiments include a litmus test to show its acidic nature and a demonstration of its solubility and reaction with sodium bicarbonate.

What is the chemical formula for acetic acid?

• CH3COOH

• NaOH

• H2SO4

• HCl

What percentage of acetic acid solution is commonly known as vinegar?

• 10%

• 15%

• 5%

• 20%

How is the smell of acetic acid described?

• Odorless

• Fruity

• Pungent

• Sweet

What happens when acetic acid is mixed with water?

• It forms a precipitate

• It is insoluble

• It dissolves completely

• It changes color

What color does blue litmus paper turn when exposed to acetic acid?

• Yellow

• Red

• Blue

• Green

What is the nature of acetic acid based on the litmus test?

• Strong acid

• Base

• Weak acid

• Neutral

What gas is released when acetic acid reacts with sodium bicarbonate?

• Nitrogen

• Oxygen

• Hydrogen

• Carbon Dioxide

What is the role of carbon dioxide in the reaction with acetic acid?

• Changes color

• Extinguishes flames

• Supports combustion

• Forms a solid

What is the visual indication of carbon dioxide release in the reaction?

• Color change

• Bubbling

• No change

• Precipitation

What is the purpose of using a matchstick in the reaction experiment?

• To ignite the solution

• To test for gas presence

• To stir the solution

• To measure temperature