Question

NaOH--->Na2So4--->NaCl Осуществите цепочку превращений

Answer 1

2NaOH+ CuSO4 = Na2SO4 + Cu(OH)2
Na2SO4 + BaCl = 2NaCl + BaSO4

Answer 2

NaOH -> Na2SO4 -> NaCl: Chain of Transformations

The given chemical equation shows a chain of transformations starting with NaOH and ending with NaCl. Let's break down the steps involved in this transformation:

1. NaOH -> Na2SO4: - Sodium hydroxide (NaOH) reacts with sulfuric acid (H2SO4) to form sodium sulfate (Na2SO4) and water (H2O). - The balanced chemical equation for this reaction is: 2NaOH + H2SO4 -> Na2SO4 + 2H2O. - This reaction is known as a neutralization reaction, where an acid and a base react to form a salt and water.

2. Na2SO4 -> NaCl: - Sodium sulfate (Na2SO4) can be transformed into sodium chloride (NaCl) through a series of reactions. - One possible method involves the reaction of sodium sulfate with hydrochloric acid (HCl) to form sodium chloride and sulfuric acid. - The balanced chemical equation for this reaction is: Na2SO4 + 2HCl -> 2NaCl + H2SO4. - This reaction is also a neutralization reaction.

Therefore, the complete chain of transformations is as follows: NaOH + H2SO4 -> Na2SO4 + 2H2O Na2SO4 + 2HCl -> 2NaCl + H2SO4

Please note that there may be alternative methods to achieve the transformation from Na2SO4 to NaCl, but the given reactions provide one possible pathway.