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  • Ammonia Gas Passed Into Water

Ammonia Gas Passed Into Water

Ammonia enters water
Ammonia gas has a colorless and pungent taste, is active, and can dissolve in water. When ammonia enters water, what is its state?

Looking at it, ammonia enters water and quickly combines with water. In water, H ² O is also, and ammonia is NH 🥰. When the two meet, ammonium hydroxide is formed, and its chemical formula is NH 🥰 · H2O O. This process is non-static. Ammonia molecules interact with water molecules. Nitrogen atoms in ammonia molecules have solitary pairs of electrons, which can be connected with hydrogen atoms in water molecules by hydrogen bonds, and then ammonium ions (NH 🥰) and hydroxide ions (OH 🥰) are formed.

The equation of the reaction is: NH 🥰 + H2O O NH 🥰 · H2O O NH 🥰 + OH. At the beginning of the introduction, the concentration of ammonia in the water gradually increases, and the reaction goes to the right, and the ammonium ion and hydroxide ion are generated gradually more, and the solution becomes alkaline. The phenolphthalein test solution can turn red, because of its hydroxide ion.

If ammonia is continuously introduced, to a certain time, the dissolution equilibrium is reached. At this time, the dissolution rate of ammonia is equal to the escape rate, and the alkalinity of the solution is also stable. However, if external conditions change, such as temperature, pressure, etc., the equilibrium changes again. When heating up, the solubility of ammonia in water decreases, the equilibrium shifts to the left, and ammonia escapes; when pressurizing, the solubility of ammonia rises, the equilibrium shifts to the right, and more ammonia dissolves into the water.

In summary, ammonia enters the water, and its transformation and balance can be followed.