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Video: Yuav ua li cas koj xam pH ntawm ib tug ntsev tov?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
xam pH ntawm ntsev tov
- mas NaF = 20.0 g.
- molar mass NaF = 41.99 g/mol.
- ntim daws = 0.500 L.
- ntawm F – = 1.4 × 10 −11
Ib yam li ntawd, koj ua li cas nrhiav pH ntawm ntsev tov?
conjugated acid-base khub. Ntsev tuaj yeem yog acidic, nruab nrab, lossis yooj yim. Ntsev uas tsim los ntawm lub zog acid thiab lub hauv paus tsis muaj zog yog acid ntsev , zoo li ammonium chloride (NH4Cl).
Tsis tas li ntawd, pH ntawm Na yog dab tsi? pH ntawm Common Acids thiab Bases
| Puag | Lub npe | 1 mM |
|---|---|---|
| Sr(OH) 2 | strontium hydroxide | 11.27 |
| NaOH | sodium hydroxide | 10.98 |
| KOH | poov tshuaj hydroxide (caustic potash) | 10.98 |
| Na2SiO3 | sodium metasilicate | 11.00 |
Ib yam li ntawd, koj ua li cas nrhiav pH ntawm kev daws teeb meem?
Rau xam pH ntawm aqueous daws koj yuav tsum tau paub cov concentration ntawm hydronium ion nyob rau hauv moles ib liter (molarity). Cov pH Tom qab ntawd suav nrog kev qhia: pH = - log [H3O+].
Dab tsi yog pH ntawm dej ntsev?
Lub txais pH qib hauv ib qho yooj yim dej ntsev system yog nruab nrab ntawm 7.6 thiab 8.4, tab sis reef tso tsheb hlau luam yog ntau rhiab heev, thiab yog li ntawd yuav tsum tau khaws cia nyob rau hauv lub siab kawg ntawm qhov kawg. pH Loj: 8.0-8.4.
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