Video: Acid thiab alkaline pH yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A pH ntawm qhov chaw ntawm 7 qhia txog qhov kev daws teeb meem nruab nrab (tsis yog acidic los yog alkaline ). Ib qho pH sub 7 yog acidic , hos ib pH saum toj no 7 yog term alkaline.
Ua kom pom qhov no, qhov txawv ntawm acidic thiab alkaline yog dab tsi?
Ua ntej, me ntsis chemistry: qib pH ntsuas li cas kua qaub los yog alkaline ib yam yog. Ib qho pH ntawm 0 yog tag nrho acidic , thaum pH ntawm 14 yog kiag li alkaline . Koj cov ntshav me ntsis alkaline , nrog pH nruab nrab 7.35 i 7.45 Nws. Koj plab heev acidic , nrog pH ntawm 3.5 lossis qis dua, yog li nws tuaj yeem zom cov zaub mov.
Puas yog pH 6 acid lossis alkaline? Acid kev daws teeb meem muaj qis dua pH , thaum cov kev daws teeb meem muaj ntau dua pH . Nyob rau hauv chav tsev kub (25 ° C los yog 77 ° F), dej ntshiab tsis yog ob qho tib si acidic tsis yooj yim thiab muaj a pH ntawm 7.
Kev faib tawm ntawm av pH thaj tsam.
| Denomination | pH ntau |
|---|---|
| Nruab nrab acidic | 5.6–6.0 |
| Me ntsis acidic | 6.1–6.5 |
| Nruab nrab | 6.6–7.3 |
| Me ntsis alkaline | 7.4–7.8 |
pH ntawm acidic yog dab tsi?
Cov pH ntsuas ntsuas li cas acidic los yog ib yam khoom tseem ceeb. Cov pH scale li ntawm 0 mus rau 14. A pH ntawm 7 yog nruab nrab. A pH tsawg dua 7 acidic.
Puas yog pH7 acidic lossis alkaline?
Qhov ntsuas pH mus ntawm 1-14, nrog pH7 ua ua tsis ncaj kiag li, i.e dej. Txhua yam uas muaj pH tsawg heev acidic , thaum cov khoom uas muaj pH siab alkaline . Cov kua qaub muaj ob peb lub ntsiab lus sib txawv, tab sis tag nrho lawv yog cov khoom uas tuaj yeem tsim cov hydrogen ions thaum nyob hauv cov tshuaj.
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