Video: Qhov twg yog acidic ntau dua ib qho kev daws ntawm pH 2 lossis kev daws ntawm pH 6?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev piav qhia: pH yog qhov ntsuas ntawm acidity los yog alkalinity ntawm a daws . concentration siab dua yog cov acidity . Yog li A kev daws ntawm pH = 2 yog ntau acidic tshaj li ntawm pH = 6 los ntawm ib qho ntawm 10000.
Ib yam li ntawd, ntau npaum li cas acidic yog kev daws ntawm pH 2 dua li kev daws ntawm pH 5?
pH Definition: ib daim duab qhia lub acidity los yog alkalinity ntawm a daws ntawm qhov ntsuas logarithmic uas 7 yog qhov nruab nrab, qhov qis dua yog ntau acid thiab cov nqi siab dua ntau alkaline. Cov pH yog sib npaug rau −log10 c, qhov twg c yog cov hydrogen ion concentration hauv moles ib liter. Li no pH 2 yog 1000 npaug zog tshaj pH 5.
Ib yam li ntawd, ntau npaum li cas acidic yog pH ntawm 3 tshaj PH ntawm 6? 1 Teb. Cov tshuaj uas nws pH = 3 yog 1000 npaug li acidic raws li cov tshuaj uas nws pH = 6.
Kuj Paub, pes tsawg zaus acidic yog ib qho kev daws ntawm pH 2 dua li kev daws ntawm pH 4?
Txij thaum 10-2 = (100)10-4, qhov concentration ntawm [H3O+] yog 100 lub sij hawm zoo ntawm pH = 2 tshaj ntawm pH = 4, yog li cov kua qaub yog 100 lub sij hawm muaj zog ntawm pH = 2 tshaj ntawm pH = 4.
Cov kua qaub ntau npaum li cas yog cov tshuaj uas muaj pH ntawm 1 ntau dua li kev daws nrog PH ntawm 3?
Piv txwv li, a pH ntawm 1 muaj molarity kaum zaug ntau concentrated dua li kev daws teeb meem ntawm pH 2. Cov pH scale yog logarithmic, txhais tau hais tias ib tug nce los yog txo tus nqi ntawm cov integer hloov cov concentration los ntawm ib tug tenfold. Piv txwv li, a pH ntawm 3 yog kaum lub sij hawm acidic ntau dua a pH ntawm 4.
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