Guruh talabasi ning umumiy kimyo fanidan Laboratoriya mashg’ulotlari Daftari

Topshirdi:______________
LABORATORIYA ISHI № 2.
Sana:_____________
Mavzu: Turli xil konsentrasiyali eritmalar tayyorlash
1- tajriba. HCl ning 10% li eritmasini tayyorlash.
Ishning maqsadi: Laboratoriya sharoitda HCl ning 10% li eritmasini tayyorlash.
Reaktivlar: HCl_(kons), distillangan suv.
Asboblar: aniq o’lchov tarozi, o’lchov silindiri, o’lchovli tomizgich.
Ishning mazmuni: HCl ning 10 % li 90 ml eritmasini tayyorlash uchun nech ml xlorid kislota va suv kerak? Hisob-kitobdan keyin probirkaga avval kerakli suvni soling keyin HCl ning kerakli hajmda soling.


2-tajriba. BaCl₂ ning 0.5 n eritmasini tayyorlash.
Ishning maqsadi: Laboratori sharoitda BaCl₂ ning 0.5 n eritmasini tayyorlash
Reaktivlar: BaCl₂ ٠2H₂O, distillangan suv.
Asboblar: aniq o’lchov tarozi, o’lchov silindiri, o’lchovli tomizgich.
Ishning mazmuni: BaCl₂ ning 0,5n 90 ml eritmasini tayyorlash uchun nech gram tuz va suv kerak? BaCl₂ ٠2H₂O ni hisobga oling.
Hisob – kitobdan keyin BaCl₂ eritmasini tayyorlash uchun BaCl₂ ٠2H₂O dan qancha kerakligini bilib olib, o’lchov silindriga soling va kerakli miqdorda suv soling.
Xulosa:
Tajribada qanday jarayon sodir bo’ldi:________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Reaksiya tenglamasini yozing:_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________