Andijon viloyati andijon tumani umumta`lim maktabining 10 – “ ” sinf o`quvchisi

Sana
2-amaliy laboratoriya mashg’uloti
Atsetilenning olinishi.
I.Kerakli jixoz va reaktivlar: probirka, gaz chiqish nayi, probka, shtativ, spirt lampasi, kalsiy karbid,suv.
II.Ishning borishi:
Atsetilen olish uchun probirkaga bir necha bo‘lak kalsiy karbid solib, ustiga
1-2 ml suv quyiladi va probirkaning og‘zi gaz chiqish nayi o‘rnatilgan, probirka bilan tezda berkitiladi. Kaltsiy karbidning suv bilan o‘zaro ta’siri shiddatli borib, atsetilen gazi ajralib chiqadi. Ajralib chiqayotgan atsetilen nay og‘zida o‘t oldirilsa, u nur sochib dudli alanga bilan yonadi:
Reaksiyalarni tenglang va hosil bo‘lgan atsetilenni keyingi tajribalarni
o‘tkazish uchun saqlang. birka bilan tezda berkitiladi. Kaltsiy karbidning suv bilan
o‘zaro ta’siri shiddatli borib, atsetilen gazi ajralib chiqadi
III.Xulosa _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Sana

3-amaliy laboratoriya mashg’uloti
Glitserinni suvda eritish va uning mis (II)-gidroksid bilan reaksiyasi