Table of Contents
- 1 How is hydrogen peroxide prepared?
- 2 How is hydrogen peroxide prepared from sodium peroxide?
- 3 How would you prepare hydrogen peroxide in the laboratory?
- 4 How is oxygen extracted from hydrogen peroxide?
- 5 Why H2O2 is not stored in glass bottles?
- 6 How is hydrogen peroxide named?
- 7 How do you make barium peroxide from barium sulphate?
- 8 How to make hydrogen peroxide?
- 9 Who discovered hydrogen peroxide?
How is hydrogen peroxide prepared?
Hydrogen peroxide is prepared by the electrolysis of 30\% ice-cold H2SO4. When acidified sulfate solution is electrolyzed at high current density, peroxodisulphate is obtained. Peroxodisulphate is then hydrolyzed to get hydrogen peroxide.
How is hydrogen peroxide prepared from sodium peroxide?
Sodium peroxide is gradually added to an ice-cold solution of 20\% H2SO4. Upon cooling, crystals of Na2SO4. 10H2O separates out and the resulting solution contains 30\% H2O2.
Why is hydrated barium peroxide used in the preparation of hydrogen peroxide?
If anhydrous barium peroxide is used in the preparation, the barium sulphate, thus obtained forms an insoluble protective coating on the surface of solid barium peroxide. This prevents the further reaction of the acid, i.e., causing the reaction to stop.
How would you prepare hydrogen peroxide in the laboratory?
(iii) BaO2 – Carbonic acid process: Hydrogen peroxide is most conveniently prepared by passing carbon dioxide gas into a suspension of barium peroxide in ice-cold distilled water. Barium carbonate precipitate is removed by filtration. The filtrate obtained is a dilute solution of hydrogen peroxide.
How is oxygen extracted from hydrogen peroxide?
To make oxygen in the laboratory, hydrogen peroxide is poured into a conical flask containing some manganese(IV) oxide. The gas produced is collected in an upside-down gas jar filled with water. As the oxygen collects in the top of the gas jar, it pushes the water out.
Which of the following compound of barium is used to prepare H2O2?
Barium peroxide is the inorganic compound with the formula BaO2….Barium peroxide.
| Names | |
|---|---|
| Melting point | 450 °C (842 °F; 723 K) |
| Boiling point | 800 °C (1,470 °F; 1,070 K) (decomposes to BaO & O2.) |
| Solubility in water | anhydrous 0.091 g/100 mL (20 °C) octahydrate 0.168 g/cm3 |
| Solubility | dissolves with decomposition in acid |
Why H2O2 is not stored in glass bottles?
(i)- Hydrogen peroxide should not be stored in glass bottles because the glass has a rough surface and these have alkali oxides present. So when this is exposed to light, it causes the decomposition of hydrogen peroxide and causes an explosion.
How is hydrogen peroxide named?
Hydrogen peroxide is a reactive oxygen species and the simplest peroxide, a compound having an oxygen–oxygen single bond….Hydrogen peroxide.
| Names | |
|---|---|
| IUPAC name Hydrogen peroxide | |
| Other names Dioxidane Oxidanyl Perhydroxic acid 0-hydroxyol Dihydrogen dioxide Oxygenated water Peroxaan | |
| Identifiers | |
| CAS Number | 7722-84-1 |
How is oxygen prepared in the lab?
How do you make barium peroxide from barium sulphate?
Barium peroxide is made into a thin paste and added slowly to ice- cold dilute sulphuric acid. BaO2 (s) + H2SO4 (aq) BaSO4 (s) + H2O2 (l) Barium sulphate is allowed to settle down as a precipitate and filtered off. The filtrate obtained is a dilute solution of hydrogen peroxide.
How to make hydrogen peroxide?
Preparation of Hydrogen peroxide: Hydrogen peroxide can be prepared in the laboratory by the action of cold, dilute sulphuric acid on sodium or barium peroxide. Let’s have a look at each of them one by one: It is prepared by adding a calculated amount of sodium peroxide into cold, dilute solution of sulphuric acid.
How can hydrogen peroxide be prepared from BaO2?
Hydrogen peroxide can also be prepared by the action of phosphoric acid on barium peroxide: This method has the advantage over method since almost all the heavy metal (e.g. Pb etc) impurities present in BaO 2 and which catalyse the decomposition of H 2 O 2 are removed as insoluble phosphates.
Who discovered hydrogen peroxide?
Hydrogen peroxide’s discovery was done by a French chemist J.L.Thenard. We write molecular formula of hydrogen peroxide as . Preparation of Hydrogen peroxide: Hydrogen peroxide can be prepared in the laboratory by the action of cold, dilute sulphuric acid on sodium or barium peroxide.