Video: Puas yuav zinc yaj hauv hydrochloric acid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog lawm, zinc ( Zn ) dissolves inhydrochloric acid ( HCl ). Zinc yog ntau reactive dua hydrogen, raws li cov reactivity series hais. Yog li ntawd, zinccan tshem tawm hydrogen los ntawm HCl thiab tsim nws soluble chloride, uas yog , zinc chloride (ZnCl2).
Ib yam li ntawd, tib neeg nug, yuav ua li cas thaum zinc tov nrog hydrochloric acid?
Nws yog ib qho kev hloov pauv qhov twg zinc hlau displaces cov hydrogen los tsim hydrogen gas thiab zinc chloride, ntsev. Zinc reacts sai nrog cov kua qaub ua npuas dej ntawm hydrogen.
Ib tug kuj yuav nug, dab tsi yuav yaj zinc? Zinc yog insoluble nyob rau hauv dej tab sis reacts nkag nrog non-oxidising acids, sib sau zinc (II) thiab tso tawm hydrogen. Nws kuj yaj nyob rau hauv lub hauv paus muaj zog. Nws reactsreadily thaum rhuab nrog oxygen muab zinc oxide.
Tsis tas li ntawd, yog zinc chloride soluble hauv HCl?
Cov tshuaj tiv thaiv. Thaum zinc chloride yog heev soluble Hauv dej, cov kev daws teeb meem tsis tuaj yeem suav tias yog cov tshuaj daws tau yooj yim Zn 2+ ions thiab Cl− ions, ZnClxH2O(4−x)hom kuj muaj. Aqueous daws ntawm ZnCl2 areacidic: a 6 M aqueous tov muaj pH ntawm 1.
Puas yog mg yaj hauv HCl?
Magnesium reacts nrog hydrochloric acid raws li kev sib npaug: Mg (s) + 2 HCl (aq) MgCl 2(aq) + H 2(g) Qhov kev ua qauv qhia no tuaj yeem siv los qhia txog cov yam ntxwv ntawm cov tshuaj tiv thaiv hlau nrog cov kua qaub, ib qho kev hloov pauv, lossis ua kom pom cov cim ntawm hydrogen gas.
Pom zoo:
Yuav ua li cas yog tag nrho yaj yaj nyob rau hauv lub pas dej ua ke?
Koj cov khoom tawg tag nrho, lossis TDS, tus nqi yog qhov ntsuas ntawm tag nrho cov khoom uas yaj hauv koj lub pas dej. Cov pas dej da dej yuav tsum muaj qhov siab tshaj TDS tus nqi ntawm ib ncig ntawm 1,500 txog 2,000 ppm. Piv txwv li, cov dej haus tuaj yeem muaj qhov siab tshaj TDS tus nqi ntawm 500 ppm raws li EPA
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