Get premium membership and access questions with answers, video lessons as well as revision papers.
Procedure:
- Concentrated ammonia solution is put in a conical flask.
- The platinum (or even copper) wire is heated until white-hot.
- Oxygen gas or air is then passed through the ammonia solution.
- The red-hot platinum (copper) wire is then put into the flask containing the concentrated ammonia.
Observations:
- The hot platinum wire glows.
- Red-brown fumes are evolved.
Explanations:
- The hot platinum coil glows when it comes into contact with the ammonia fumes, which come from the concentrated ammonia solution.
- Reaction between ammonia and oxygen takes place on the surface of the platinum wire that acts a s a catalyst.
- A lot of heat is produced in the reaction that enables the platinum coil to continue glowing.
- Ammonia is oxidized to nitrogen (IV) oxide.
Kavungya answered the question on April 30, 2019 at 10:15
- Describe the Qualitative analysis for cations using sodium hydroxide solution.(Solved)
Describe the Qualitative analysis for cations using sodium hydroxide solution.
Date posted: April 30, 2019. Answers (1)
- Describe the reactions of cations with common laboratory reagents and solubilities of some salts in water.(Solved)
Describe the reactions of cations with common laboratory reagents and solubilities of some salts in water.
Date posted: April 30, 2019. Answers (1)
- Illustrate the qualitative analysis for common anions.(Solved)
Illustrate the qualitative analysis for common anions.
Date posted: April 30, 2019. Answers (1)
- Explain the effects of heat on concentrated nitric acid.(Solved)
Explain the effects of heat on concentrated nitric acid.
Date posted: April 30, 2019. Answers (1)
- Explain the reaction of nitric acid with saw dust.(Solved)
Explain the reaction of nitric acid with saw dust.
Date posted: April 30, 2019. Answers (1)
- Describe the Ostwald’s process.(Solved)
Describe the Ostwald’s process.
Date posted: April 30, 2019. Answers (1)
- Describe the Laboratory preparation of sulphur (IV) oxide.(Solved)
Describe the Laboratory preparation of sulphur (IV) oxide.
Date posted: April 29, 2019. Answers (1)
- Describe the preparation of sulphur (VI) oxide from concentrated sulphuric (VI) acid.(Solved)
Describe the preparation of sulphur (VI) oxide from concentrated sulphuric (VI) acid.
Date posted: April 29, 2019. Answers (1)
- Explain the roasting of sulphur in air.(Solved)
Explain the roasting of sulphur in air.
Date posted: April 29, 2019. Answers (1)
- Describe the Preparation of sulphur (IV) oxide solution.(Solved)
Describe the Preparation of sulphur (IV) oxide solution.
Date posted: April 29, 2019. Answers (1)
- Describe the reduction of concentrated nitric (V) acid by sulphur (VI) oxide.(Solved)
Describe the reduction of concentrated nitric (V) acid by sulphur (VI) oxide.
Date posted: April 29, 2019. Answers (1)
- Explain Sulphur (IV) oxide as oxidizing agent.(Solved)
Explain Sulphur (IV) oxide as oxidizing agent.
Date posted: April 29, 2019. Answers (1)
- Describe Sulphur (IV) oxide as bleaching agent.(Solved)
Describe Sulphur (IV) oxide as bleaching agent.
Date posted: April 29, 2019. Answers (1)
- Describe the reaction of sulphur (VI) oxide with chlorine(Solved)
Describe the reaction of sulphur (VI) oxide with chlorine.
Date posted: April 29, 2019. Answers (1)
- Describe the reaction of sulphuric (IV) oxide with sodium hydroxide(Solved)
Describe the reaction of sulphuric (IV) oxide with sodium hydroxide.
Date posted: April 29, 2019. Answers (1)
- Explain Sulphur (IV) oxide as a pollutant.(Solved)
Explain Sulphur (IV) oxide as a pollutant.
Date posted: April 29, 2019. Answers (1)
- State the raw materials in the manufacture of sulphuric (VI) acid.(Solved)
State the raw materials in the manufacture of sulphuric (VI) acid.
Date posted: April 29, 2019. Answers (1)
- Describe the action of concentrated sulphuric (VI) acid on methanoic acid.(Solved)
Describe the action of concentrated sulphuric (VI) acid on methanoic acid.
Date posted: April 29, 2019. Answers (1)
- Describe the action of sulphuric (VI) acid on oxalic acid.(Solved)
Describe the action of sulphuric (VI) acid on oxalic acid.
Date posted: April 29, 2019. Answers (1)
- Describe the action of sulphuric (VI) acid on white sugar.(Solved)
Describe the action of sulphuric (VI) acid on white sugar.
Date posted: April 29, 2019. Answers (1)