Video: Acid ua dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kua qaub yog ib yam khoom uas pub hydrogen ions. Vim li no, thaum lub acid yaj nyob rau hauv dej , qhov sib npaug ntawm hydrogen ions thiab hydroxide ions hloov. Tam sim no muaj hydrogen ions ntau dua li hydroxide ions hauv cov tshuaj. Cov tshuaj no yog acidic.
Tsuas yog li ntawd, acid siv rau dab tsi?
Cov kua qaub yog siv li catalysts nyob rau hauv industrial thiab organic chemistry; piv txwv li, sulfuric kua qaub yog siv hauv ntau qhov ntau hauv cov txheej txheem alkylation los tsim cov roj av. Ib txhia kua qaub , xws li sulfuric, phosphoric, thiab hydrochloric kua qaub , kuj cuam tshuam lub cev qhuav dej thiab condensation cov tshuaj tiv thaiv.
Ib yam li ntawd, acid qis lossis pH siab? Siab concentrations ntawm hydrogen ions yield a pH qis ( acidic tshuaj), hos qib qis ntawm hydrogen ions ua rau a siab pH (cov khoom siv hauv paus). Nws tsis yog acidic tsis yooj yim, thiab muaj a pH ua 7.0. Txhua yam hauv qab 7.0 (xws li 0.0 txog 6.9) yog acidic , thiab txhua yam saum toj no 7.0 (los ntawm 7.1 txog 14.0) yog alkaline.
Ntawm no, dab tsi yog lub ntsiab lus yooj yim ntawm cov kua qaub?
Ib kua qaub yog ib hom tshuaj uas pub cov protons los yog hydrogen ions thiab/los yog txais electrons. Lo lus kua qaub los ntawm Latin lo lus acidus los yog acere, uas txhais tau tias "qaub," txij li ib qho ntawm cov yam ntxwv ntawm kua qaub Nyob rau hauv dej yog qaub saj (piv txwv li, vinegar los yog txiv qaub kua txiv).
Vim li cas cov kua qaub muaj pH tsawg?
Cov kua qaub yog cov khoom uas muab hydrogen ions (H+) thiab qis pH , whereas bases muab hydroxide ions (OH–) thiab tsa pH . Qhov muaj zog dua kua qaub , qhov yooj yim dua nws pub H+.
Pom zoo:
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