Amaliy ish №1 Mavzu: „Galogenlar” mavzusiga oid tajribaviy masalalar yechish Darsning maqsadi

Amaliy ish №4
Mavzu: Azot guruhchasi elementlari mavzusiga oid tajribaviy masalalar yechish


Darsning maqsadi: Azot guruhchasi elemantlari mavzusiga oid tajribaviy
masalalar yechish orqali o’tilganlarni takrorlash.
Kerakli jihozlar va reaktivlar. ammoniy xlorid, kalsiy gidroksid, nitrat kislota,mis (II) oksidi, mis gidroksidi, malaxit, natriy sulfat bariy xlorid, kumush nitrat, sulfat kislota, temir (II) oksid, temir (II) gidroksid, temir (II) xlorid, temir qoshiqcha, tqinlar, shisha va rezina naylar, pirobirkalar, pipetka, shtativ, stakanlar, quruq yonilg’i (urotropin).
Ishning borishi: (Xavfsizlik qoidalariga rioya qiling)
l.Ammiak hosil qilish:
Ammoniy xlorid (kristall) tuziga teng miqdorda so’ndirilgan ohak kukuni
aralashtiriladi. Aralashma ohistalik bilan probirkani 1/3 qismiga solinadi quruq
yonilg’i bilan qizdiriladi. (Reaksiya tenglamalariniyozing!) O’tkir hidli gaz ammiak ajralayotganligini bilgandan so’ng qizdirish to’xtatiladi. Ammiakni probirkaga yig’ib olinib suvga aralashtiriladi. Ammiak suvda juda yaxshi eriydi va ammoniy gidroksid (novshadil spirit) hosil bo’ladi.
NH₃+H₂O→NH₄OH
Bu reaksiyada NH₄ va OH ionlari borligi eritmani ishqoriy muhitga ega ekanligini bildiradi (indikator qog’oz tekkizib aniqlanadi). Demak tajriba natijasida ammiak hosil bo’lgan.



Xulosa.
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________