Kimyo fanidan laboratoriya mashg’ulotlari

3-tajriba. Eritma suyultirilganda gidroliz protsessining kuchayishi.

Probirkaga vismut (III)-nitrat Bi(NO₃)₃ eritmasidan 2-3 ml quying va uni distirlangan suv bilan 3-4 barobar suyultiring. Asosli tuz Bi(OH)₂NO₃, ning cho’kmaga tushishini kuzating. Gidroliz tenglamasini yozing.

eritma muhiti kislotali bo’lib, lakmus qog’ozining rangi qizil rangga bo’yaladi.

4-tajriba. To’la gidroliz.

Probirkaga 2-3 ml alyuminiy sul'fat Al₂(SO₄)₃ eritmasidan quying va ustiga shuncha miqdorda soda Na₂CO₃ erimasidan qishing. Reaksiya natizhasida hosil bo’lgan alyuminiy karbonat - Al₂(CO₃)₃ gidrolizlanishi hisobiga uglerod (IV)-oksidi ajralib chiqishini va alyuminiy gidroksid Al₂(SO₄)₃ cho’kmasini hosil bo’lishini kuzating.

Olingan tuzlarni birgalikda gidrolizlanishining molekulyar va ionli tenglamalarini yozing.

hosil bo’lgan alyuminiy karbonat eritmada to’liq gidrolizga uchraydi va eritma muhiti neytral bo’ladi.

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________