Dab tsi yog qee qhov qaug zog acids?
Dab tsi yog qee qhov qaug zog acids?

Video: Dab tsi yog qee qhov qaug zog acids?

Video: Dab tsi yog qee qhov qaug zog acids?
Video: Dab neeg Niam tais vam ntau 26/5/2017 2024, Kaum ib hlis
Anonim

A qaug zog acid yog ib kua qaub uas tsis tsim ntau hydrogen ions thaum nyob rau hauv aqueous tov. Tsis muaj kua qaub muaj tus nqi pH tsawg thiab siv los ua kom tsis muaj zog hauv paus. Piv txwv ntawm tsis muaj zog acids muaj xws li: acetic kua qaub (xws li vinegar), lactic kua qaub , citric qab kua qaub , thiab phosphoric kua qaub.

Kuj paub, uas yog cov tsis muaj zog acids?

A qaug zog acid yog ib kua qaub tshuaj uas tsis dissociate (sib cais rau hauv ions) kiag li nyob rau hauv dej tov. Qhov no txhais tau tias nws tsis muab tag nrho nws cov hydrogen ions rau hauv dej. Tsis muaj kua qaub feem ntau muaj pH ntawm 3 thiab 6. acetic kua qaub (CH3COOH) thiab oxalic kua qaub (H2C2O4) yog cov piv txwv ntawm tsis muaj zog acids.

Ib tug kuj nug, dab tsi yog 7 lub zog acids thiab bases? Muaj 7 lub zog acids: chloric acid , hydrobromic acid , hydrochloric acid, hydroiodic acid , nitric acid, perchloric acid, thiab sulfuric acid. Ua ib feem ntawm cov npe ntawm cov kua qaub uas muaj zog tsis muaj qhov qhia txog qhov txaus ntshai lossis ua rau cov kua qaub puas.

Yog li ntawd, qhov twg yog qhov tsis muaj zog tshaj plaws acid?

Citric acid

Dab tsi yog cov muaj zog thiab tsis muaj zog acids nrog piv txwv?

Piv txwv ntawm muaj zog acids yog hydrochloric kua qaub (HCl), perchloric kua qaub (HClO4), Nitric kua qaub (HNO3) thiab sulfuric kua qaub (H2YOG4). A qaug zog acid tsuas yog ib feem dissociated, nrog ob qho tib si undissociated kua qaub thiab nws cov khoom dissociation yog tam sim no, nyob rau hauv kev daws, nyob rau hauv equilibrium nrog ib leeg.

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