13 – tajriba. Qo’rg’oshinning kompleks birikmasini olish va uning suv bilan ajralishi. Probirkaga 3 tomchi qo’rg’oshin (II) –nitrat eritmasidan tomizing va 3
tomchi natriy iodid qo’shing. Olingan cho’kmaning hammasi erib ketguncha
natriy iodiddan yana bir necha tomchi qo’shing. Hosil bo’lgan eritmaga
cho’kma hosil bo’lguncha tomchilatib suv qo’shing. Cho’kmaning rangiga
e‘tibor bering.
Qo’rg’oshin (II) – iodid cho’kmasi nima sababdan ortiqcha natriy iodidda
erishini tushuntiring.
Reaktsiya tenglamalarini yozing.
Kompleks birikmaning suv bilan ajralish reaktsiyasi tenglamasini yozing va
suv qo’shilganda qo’rg’oshin (II) – iodid cho’kmasi hosil bo’lish sababini
tushuntiring.