Question

Какими из реактивов: AgNo3, BaCl2,H2SO4,NaOH можно экспериментально доказать состав NH4OH?

Answer 1

Качественная ре-ия на ион аммония: взаимодействие с растворами щелочей при нагревании, появляется запах аммиака и синее окрашивание лакмусовой бумаги
то есть взаимодействие с NaOH

Answer 2

Experimentally Demonstrating the Composition of NH4OH

To experimentally demonstrate the composition of NH4OH, you can use the following reagents:

1. AgNO3 (Silver Nitrate) 2. BaCl2 (Barium Chloride) 3. H2SO4 (Sulfuric Acid) 4. NaOH (Sodium Hydroxide)

Reactions to Demonstrate the Composition of NH4OH

1. AgNO3 (Silver Nitrate) - When AgNO3 is added to NH4OH, it forms a white precipitate of AgOH, indicating the presence of OH- ions from NH4OH. - Reaction: AgNO3 + NH4OH → AgOH ↓ + NH4NO3 - Source: 2. BaCl2 (Barium Chloride) - When BaCl2 is added to NH4OH, it forms a white precipitate of Ba(OH)2, indicating the presence of OH- ions from NH4OH. - Reaction: BaCl2 + 2NH4OH → Ba(OH)2 ↓ + 2NH4Cl - Source: 3. H2SO4 (Sulfuric Acid) - When H2SO4 is added to NH4OH, it forms (NH4)2SO4, which is a white crystalline solid, indicating the presence of NH4+ ions from NH4OH. - Reaction: H2SO4 + 2NH4OH → (NH4)2SO4 + 2H2O - Source: 4. NaOH (Sodium Hydroxide) - When NH4OH is added to NaOH, it forms a clear solution, indicating the presence of NH4+ ions from NH4OH. - Reaction: NH4OH + NaOH → NaOH + NH4OH - Source: These reactions demonstrate the presence of NH4+ and OH- ions in NH4OH, thereby experimentally proving its composition.