The reaction of sodium oxide with water
would form:
1. a neutral solution.
2. a basic solution.
3. an acidic solution.
An explanation would be appreciated too!!
Na2O + HOH ==> 2NaOH
REMEMBER, metal oxides added to water form bases. NaOH is a base. Non-metal oxides added to water form acids. An example is SO3 + H2O ==>H2SO4
That assumes, of course, that the metal oxide or non-metal oxide is soluble in water.
When sodium oxide (Na2O) reacts with water (H2O), it forms sodium hydroxide (NaOH), also known as caustic soda. This reaction is highly exothermic and releases heat. Sodium hydroxide is a strong base, so the resulting solution will be basic.
Na2O + H2O → 2NaOH
The process involves the oxide ions (O2-) from sodium oxide combining with water molecules to form hydroxide ions (OH-) in the solution. These hydroxide ions increase the concentration of hydroxide ions in the solution, resulting in a basic pH. Thus, option 2, a basic solution, is the correct answer.
When sodium oxide (Na2O) reacts with water (H2O), it forms sodium hydroxide (NaOH). Sodium hydroxide is a strong base that dissociates completely in water to release hydroxide ions (OH-). These hydroxide ions then increase the concentration of hydroxide ions in the solution, making it basic. Therefore, the correct answer is 2. a basic solution.
To understand why sodium oxide forms a basic solution, we need to look at the reaction equation:
Na2O + H2O → 2NaOH
In this reaction, one molecule of sodium oxide reacts with one molecule of water to produce two molecules of sodium hydroxide. Sodium hydroxide is an ionic compound composed of sodium ions (Na+) and hydroxide ions (OH-).
When sodium hydroxide dissolves in water, it dissociates into its constituent ions:
NaOH(s) → Na+(aq) + OH-(aq)
The hydroxide ions (OH-) released during the dissociation process increase the concentration of hydroxide ions in the solution. Since hydroxide ions have a negative charge, they can accept hydrogen ions (H+) from water molecules, leading to an increase in the concentration of hydroxide ions and a decrease in the concentration of hydrogen ions. This increase in hydroxide ions (OH-) and decrease in hydrogen ions (H+) raise the pH of the solution, making it basic.
Therefore, when sodium oxide reacts with water, it forms sodium hydroxide, which dissociates to release hydroxide ions, resulting in the formation of a basic solution.