Video: Cov tshuaj tiv thaiv dab tsi yog CuSO4 thiab nh3?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Copper sulfate teb nrog ammonia los tsim tetraamminecopper (II) sulfate.
Khaws qhov no hauv kev xav, thaum nh3 ntxiv rau CuSO4 yuav ua li cas?
Thaum muaj dej ammonia , NH3 (aq), ib ntxiv rau kev daws ntawm tooj liab sulfate, CuSO 4 , thawj zaug ntawm tooj liab hydroxide, Cu (OH) 2, pib tsim. Thaum twg ntxiv ammonia ntxiv , lub precipitate dissolves thiab cov tshuaj hloov los ntawm lub teeb xiav mus rau ib tug sib sib zog nqus huab tais xiav qhia pom muaj Cu ( NH3 )4^2+.
Qhov thib ob, thaum CuSO4 ntxiv rau cov tshuaj ammonia? Copper sulphate hauv tshuaj ammonia tsim ib tug complex uas yuav ua rau txo tus naj npawb ntawm hais nyob rau hauv daws . Yog li, van`t hoff factor yuav txo qis.
Yog li ntawd, ammonia ua li cas nrog CuSO4?
Teb Chaws Keeb Kwm: Yuav ua li cas thaum twg ammonia reacts nrog a CuSO 4 daws? Qhov no tetraamminecopper (II) sulfate yog ib tug ntau darker, ntxaum xiav dua CuSO nws tus kheej, yog li ntxiv ntawm ammonia yuav instantly ua rau ib tug darkening ntawm cov xim ntawm cov tshuaj.
Yuav ua li cas thaum ammonia reacts nrog tooj liab?
Tooj (II) ib reacts nrog stoichiometric ntau ntawm aqueous ammonia los nag lub teeb xiav Cu (OH)2. Qee cov ntsev yooj yim kuj tuaj yeem tsim. Lub precipitate tsis yaj nyob rau hauv ntau tshaj sodium hydroxide tshwj tsis yog tias cov tshuaj NaOH muaj concentrated heev.
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