Ammonia and Its Properties

The video explains the chemical formula of ammonia gas, NH3, emphasizing the need to memorize it. It discusses how ammonia gas dissolves in water, forming an equilibrium with ammonium ions (NH4+) and hydroxide ions (OH-), resulting in an alkaline solution. The video also touches on the conversion of ammonia gas to liquid under pressure and its behavior in water.

What is the chemical formula for ammonia gas?

• NH2

• NH

• NH4

• NH3

What happens when ammonia gas is bubbled through water?

• It forms a solid

• It becomes gaseous

• It evaporates

• It dissolves and becomes aqueous

What ions are formed when ammonia dissolves in water?

• Ammonium and chloride ions

• Ammonium and hydroxide ions

• Hydroxide and sulfate ions

• Chloride and sulfate ions

What type of solution is formed when hydroxide ions are present?

• Acidic solution

• Saline solution

• Neutral solution

• Alkaline solution

What is the formula for liquid ammonia?

• NH

• NH2

• NH3

• NH4

How can ammonia gas be converted to liquid?

• By cooling and applying pressure

• By heating it

• By adding salt

• By adding water

What happens to ammonia when it is put in water?

• It forms a new compound

• It remains unchanged

• It evaporates

• It establishes an equilibrium with water