What happens when Sodium Peroxide dissolves in water?

Question

Answer

On contact with water sodium peroxide, following reaction occurs:-
Na2O2 + 2 H2O → 2 NaOH + H2O2
sodium peroxide is hydrolyzed to give sodium hydroxide and hydrogen peroxide ..........:)

Answer

It is hydrolysed when its  dissolved in water to  produce sodium hydroxide and hydrogen peroxide......Na2O2+H2O react making 2NaOH+H2O2

Answer

When sodium peroxide dissolve in water form sodium hydroxide and peroxide

Answer

Sodium peroxide (Na2O2) is a white, crystalline solid compound that readily reacts with water. When sodium peroxide dissolves in water, a chemical reaction occurs, resulting in the formation of sodium hydroxide (NaOH) and hydrogen peroxide (H2O2). Below is a detailed explanation of what happens during this reaction.

1. Dissolution of Sodium Peroxide:
When sodium peroxide is added to water, it dissolves and dissociates into its constituent ions: sodium ions (Na+) and peroxide ions (O2-). The dissolution process can be represented by the following equation:
Na2O2(s) → 2Na+(aq) + O2-(aq)

2. Reaction with Water:
Once the sodium peroxide has dissolved, the peroxide ions react with water molecules in a process known as hydrolysis. This reaction leads to the formation of sodium hydroxide and hydrogen peroxide. The hydrolysis reaction can be expressed as follows:
O2-(aq) + 2H2O(l) → 2OH-(aq) + H2O2(l)

3. Formation of Sodium Hydroxide:
As a result of hydrolysis, the peroxide ions (O2-) react with water to produce hydroxide ions (OH-) and hydrogen peroxide (H2O2). The hydroxide ions then combine with the sodium ions (Na+) from the sodium peroxide, leading to the formation of sodium hydroxide (NaOH):
O2-(aq) + 2H2O(l) → 2OH-(aq) + H2O2(l)
2Na+(aq) + 2OH-(aq) → 2NaOH(aq)

4. Generation of Hydrogen Peroxide:
During the hydrolysis reaction, hydrogen peroxide (H2O2) is formed as one of the products. Hydrogen peroxide is a colorless liquid that acts as both a strong oxidizer and a reducing agent. It can further react with other substances or decompose into water and oxygen.

Summary:
In summary, when sodium peroxide dissolves in water, it undergoes hydrolysis, resulting in the formation of sodium hydroxide and hydrogen peroxide. The hydrolysis reaction can be represented by the following overall equation:
Na2O2(s) + 2H2O(l) → 2NaOH(aq) + H2O2(l)
This reaction is exothermic, releasing heat as a byproduct. The resulting solution will contain sodium hydroxide, hydrogen peroxide, and any excess undissolved sodium peroxide. It is important to handle sodium peroxide with caution due to its reactivity and potential hazards.

Similar Class 11 Doubts

25.3 g of sodium carbonate, Na2CO3 is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ions, Na+and carbonate ions, are respectively.(At. mass of carbon = 40)

5 gram sodium chloride is dissolved in 250 ml of water calculate the molarity of the solution?

5g sodium chloride is dissolved in 250 ml of water calculate the molarity of a solution?

How much weight of sodium corbonet is disolved with 50 gram water to make 0.2 molal sodium corbonet

What would happen if human being has no option but to drink sea water?

Top Courses for Class 11View all

Chemistry Class 11

CUET Mock Test Series

English Class 11

Chemistry Practice Tests: CUET Preparation

CUET Mock Test: Humanities Subjects 2025

Top Courses for Class 11

Top Courses for Class 11

Suggested Free Tests

Related Content

Schools

Competitive Examinations

Quick Access Links

Technical Exams