Ib qho kua qaub muaj cov ntsiab lus siab ntawm hydrogen ions (H + pib superscript, ntxiv rau, kawg superscript), ntau dua li cov dej ntshiab. Ib qho kev daws teeb meem muaj qhov qis H + pib superscript, ntxiv rau, qhov kawg superscript concentration, tsawg dua cov dej ntshiab.
Dab tsi muaj qhov siab tshaj plaws ntawm H + ions?
Ntawm pH nplai, tus lej uas muaj qhov siab tshaj plaws hydrogen ions feem ntau yog 0. Qhov no sawv cev rau kev daws nrog hydrogen ion…
Cov kua qaub twg muaj qhov siab dua hydrogen ion concentration?
Cov kua qaub muaj zog thiab pH
pH yog qhov ntsuas ntawm qhov concentration ntawm hydrogen ions hauv cov tshuaj. Cov kua qaub muaj zog xws li hydrochloric acidntawm cov kev sib xyaw uas koj ib txwm siv hauv chav kuaj muaj pH nyob ib ncig ntawm 0 txog 1. Qhov pH qis dua, qhov siab dua ntawm hydrogen ions hauv cov tshuaj.
Tus lej acid zog yog dab tsi?
Strong Acids
Feem ntau, cov kua qaub muaj zog muaj pH ntawm kwv yees xoom mus rau 3 . Qhov muaj zog cov kua qaub, qhov zoo dua nws dissociates nyob rau hauv ib tug aqueous tov, tso ntau cationic hydrogen (H+) ions. Piv txwv ntawm cov acids muaj zog muaj xws li hydrochloric acid (HCl), hydrobromic acid (HBr), perchloric acid (HClO 4), thiab sulfuric acid (H 2. SO4).
Dab tsi yog qhov tseem ceeb tshaj plaws?
Acid Rain and the pH Scale
The scale has values range from xoom (the most acidic) to14 (qhov yooj yim tshaj plaws). Raws li koj tuaj yeem pom los ntawm pH nplai saum toj no, dej ntshiab muaj pH tus nqi ntawm 7. Tus nqi no suav tias yog nruab nrab-tsis yog acidic lossis yooj yim.
