Piv txwv li, muaj zog acid thiab qaug zog acid yog dab tsi?
Piv txwv li, muaj zog acid thiab qaug zog acid yog dab tsi?

Video: Piv txwv li, muaj zog acid thiab qaug zog acid yog dab tsi?

Video: Piv txwv li, muaj zog acid thiab qaug zog acid yog dab tsi?
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Piv txwv ntawm cov kua qaub muaj zog yog hydrochloric acid ( HCl ), perchloric acid (HClO4), nitric acid (HNO3thiab sulfuric acid (H2SO4). Cov kua qaub tsis muaj zog tsuas yog ib feem ntawm kev sib cais, nrog rau ob qho tib si cov kua qaub tsis sib haum thiab nws cov khoom sib cais tam sim no, hauv kev daws, hauv kev sib npaug.

Raws li txoj cai, cov kua qaub thiab tsis muaj zog acid yog dab tsi?

A qaug zog acid yog ib kua qaub uas yog ib feem dissociated rau nws ions nyob rau hauv ib tug aqueous tov los yog dej. Piv txwv li, a muaj zog acid tag nrho dissociates rau hauv nws cov ions hauv dej. Nyob rau tib lub concentration, tsis muaj zog acids muaj pH ntau dua muaj zog acids.

Tsis tas li ntawd, cov kua qaub uas muaj zog thiab tsis muaj zog acids ua piv txwv rau txhua tus yog dab tsi? Piv txwv ntawm ib muaj zog acid suav nrog hydrochloric kua qaub (HCl), sulfuric kua qaub (H2SO4), nitric kua qaub (HNO3)… Piv txwv ntawm ib qaug zog acid suav nrog acetic/ethanoic kua qaub (piv txwv li hauv vinegar) (CH3COOH), Hydrofluoric kua qaub (HF), dej (uas peb yuav tsum nco ntsoov yog amphoteric) (H2O)…

Tom qab, lo lus nug yog, dab tsi yog qhov muaj zog acid nrog piv txwv?

Ib kua qaub uas lov tag nrho thiab muab tawm ntau ions, los yog protons, yog suav tias yog ib tug muaj zog acid . Piv txwv ntawm muaj zog acids suav nrog sulfuric kua qaub , hydrochloric tshuaj kua qaub , perchloric tshuaj kua qaub , thiab nitric kua qaub.

Piv txwv li qaug zog acid yog dab tsi?

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.

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