Qhov txawv ntawm CuSO4 (s) thiab CuSO4 (aq)

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

CuSO4 (s) vs CuSO4 (aq)

tooj liab sulfate tseem hu ua cupric sulfate. Copper sulfate yog ntsev ntawm tooj liab + 2 ion thiab sulfate anion. Thaum cov tooj liab + 2 tov thiab sulfate tov (potassium sulfate) sib xyaw ua ke, cov tshuaj tooj liab sulfate yuav tshwm sim. Copper sulfate muaj ntau hom kev sib txuas, uas txawv ntawm cov dej molecules txuam nrog nws. Thaum tooj liab sulfate tsis txuam nrog cov dej molecules, nws yog hu ua anhydrous daim ntawv. Qhov no yog nyob rau hauv ib tug hmoov daim ntawv thiab muaj ib tug grey-dawb xim. Anhydrous tooj liab sulfate muaj molar pawg ntawm 159.62 g / mol. Nyob ntawm tus naj npawb ntawm cov dej molecules, lub cev lub cev ntawm cov ntsev yuav txawv.

CuSO_{4 (s)}

tooj liab sulfate cov khoom tuaj yeem pom nyob rau hauv ntau cov qauv molecular raws li tau hais hauv kev taw qhia. Txawm li cas los xij, ntawm lawv, feem ntau tshwm sim daim ntawv yog pentahydrate (CuSO ₄·5H₂O). Qhov no muaj cov xim zoo nkauj ci xiav thiab cov qauv siv lead ua ntxim nyiam. Cov molar loj ntawm cov khoom no yog 249.70 g / mol. Lawm, daim ntawv no pentahydrate tam sim no yog chalcanthite. Tsis tas li ntawd, muaj ob hom hydrated ntawm tooj liab sulfate cov khoom uas tsis tshua muaj heev. Ntawm lawv, bonattite yog ib qho ntsev trihydrated thiab boothite yog ntsev heptahydrated. Lub pentahydrate tooj liab sulfite muaj ib tug melting point ntawm 150 ° C, tab sis nws nyhav decompose ua ntej no kub los ntawm tshem tawm plaub dej molecules. Cov xim xiav ntawm cov siv lead ua los ntawm cov dej molecules. Thaum rhuab mus txog 200 ^{o C, tag nrho cov dej molecules evaporate, thiab grey-dawb xim anhydrous daim ntawv tau txais. Cov tooj liab sulfate tau yooj yim yaj hauv dej, los tsim cov tshuaj aqueous. Cov ntsev no muaj ntau yam siv ua liaj ua teb. Piv txwv li, tooj liab sulfate pentahydrate yog ib tug zoo fungicide.}

CuSO_{4 (aq)}

Thaum cov khoom ntawm tooj liab sulfate dissolves hauv dej, nws muab cov tshuaj aqueous ntawm tooj liab sulfate, uas yog xim xiav. Hauv qhov kev daws teeb meem no, tooj liab + 2 ions yuav muaj nyob hauv aqua complexes. Lub complex uas tsim tau sau ua [Cu(H₂O)₆²⁺ Qhov no yog ib qho octahedral complex, qhov twg rau dej ligands teem ib ncig ntawm tooj liab + 2 ion octahedrally. Txij li thaum lub aqua ligands tsis muaj nqi, tag nrho cov complex tau txais tus nqi ntawm tooj liab, uas yog +2. Thaum cov khoom tooj liab sulfate yaj hauv dej, nws tso cua sov rau sab nraud; yog li ntawd, qhov kev daws teeb meem yog exothermic. Aqueous daws ntawm tooj liab sulfate yog ib qho tseem ceeb hauv tshuaj reagents. Piv txwv li, Fehling's reagent thiab Benedicts 'reagent muaj tooj liab sulfate. Cov no yog siv los kuaj txo cov suab thaj. Yog li nyob rau hauv lub xub ntiag ntawm ib tug txo cov suab thaj, Cu²⁺ yuav txo mus rau Cu ^{+Tsis tas li ntawd, qhov no kuj tseem siv rau hauv Biuret reagent rau kev kuaj cov protein.}

CuSO₄ (s) and CuSO_{4 (aq)?}

• Feem ntau CuSO₄ (s) yog xim xiav siv lead ua. Tab sis CuSO_{4 (aq) yog xim xiav.}

• Feem ntau hauv CuSO_{4 (s), muaj tsib cov dej molecules. Tab sis muaj peev xwm sib txawv ntawm cov dej molecules los yog tej zaum tsis muaj dej molecules nyob rau hauv lub compound. Hauv aqueous tooj liab sulfate, muaj rau dej molecules tsim complexes nrog tooj liab ions.}