Experimental Chemistry - gases

Question 1

Properties of Hydrogen (H) and it’s method of collection.

Answer 1

Insoluble in water, less dense than air. Method of collection is displacement in water

Question 2

3 methods of collection

Answer 2

Displacement of water, Downward Delivery and Upward Delivery

Question 3

Properties of Oxygen (o2) and it’s method of collection.

Answer 3

Very slightly soluble in water, slightly denser than air and it’s method of collection is displacement in water.

Question 4

Properties of Carbon Dioxide (co2) and it’s method of collection.

Answer 4

Slightly soluble in water, denser than air and it’s method of collection is displacement in water.

Question 5

Properties of Chlorine (Cl) and its method of collection

Answer 5

Soluble in water, denser than air and it’s method of collection is downward delivery.

Question 6

Properties of Hydrogen chloride (HCl) and its method of collection

Answer 6

Very soluble in water, denser than air and its method of collection is downward delivery

Question 7

Properties of Sulfur dioxide (so2) and its method of collection

Answer 7

Very soluble in water, denser than air and its method of collection is downward delivery

Question 8

Properties of Ammonia (NH3) and its method of collection

Answer 8

Very soluble in water, less dense to air and its method of collection is upward delivery

Question 9

How to identify carbon dioxide (co2)?

Answer 9

Gas must bubble through limewater and it must form precipitate

Question 10

How to identify Hydrogen (H)?

Answer 10

Place a lighted splint at the mouth of the test tube and it should extinguish with a pop sound

Question 11

How to identify oxygen (o)?

Answer 11

Insert glowing splint into the test tube and glowing splint will relight

Question 12

How to identify Ammonia (NH3)?

Answer 12

Place damp red litmus paper into the test tube and it will turn the paper blue.