Question

Na2SO3+2HCl = 2NaCl + SO2 + H2O почему эта реакция протекает, так а не так как обычно (Na2SO3+2HCl = 2NaCl + H2SO3)

Answer 1

H2SO3-слабая,неустойчивая кислота,разлагается на воду и газ-SO2.К тому же, реакция Na2SO3+2HCl = 2NaCl + H2SO3 практически не осуществима, потому что при взаимодействии соли и кислоты реакция возможна,если образуется осадок или газ.

Answer 2

Explanation of the Reaction Na2SO3 + 2HCl = 2NaCl + SO2 + H2O

The reaction between sodium sulfite (Na2SO3) and hydrochloric acid (HCl) results in the formation of sodium chloride (NaCl), sulfur dioxide (SO2), and water (H2O). This reaction deviates from the typical reaction of sodium sulfite with hydrochloric acid, which would produce sodium chloride and sulfurous acid (H2SO3).

The reason for this deviation lies in the chemical properties of sulfurous acid and its tendency to decompose into sulfur dioxide and water. When sulfurous acid is formed, it readily decomposes into sulfur dioxide and water, leading to the observed products in the reaction.

Chemical Equation: The balanced chemical equation for the reaction is: Na2SO3 + 2HCl = 2NaCl + SO2 + H2O

Explanation: When sodium sulfite reacts with hydrochloric acid, the following reaction occurs: Na2SO3 + 2HCl = 2NaCl + SO2 + H2O

The formation of sulfurous acid (H2SO3) is not observed in this reaction due to the instability of sulfurous acid, which readily decomposes into sulfur dioxide and water. Therefore, the products of the reaction are sodium chloride, sulfur dioxide, and water.

Source: The chemical equation and explanation are based on the chemical properties of sulfurous acid and the reaction between sodium sulfite and hydrochloric acid.

I hope this explanation helps clarify the deviation in the reaction between sodium sulfite and hydrochloric acid. If you have further questions or need additional information, feel free to ask!