Video: Muaj pes tsawg feem pua ntawm acetic acid nyob hauv vinegar?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Nws yog acetic acid uas muab vinegar nws tus yam ntxwv saj thiab tsw. Qhov zoo tshaj plaws ntawm acetic acid nyob rau hauv vinegar yog nruab nrab 4 thiab 5 feem pua ntawm qhov hnyav. Ib feem pua ntawm acetic acid ntau dua 5 ua rau cov kua qaub tsis zoo.
Kuj tseem paub yog, koj ua li cas thiaj nrhiav tau qhov feem pua ntawm acetic acid hauv vinegar?
Koj yuav xav muab cov moles xam los ntawm 4 kom tau moles ntawm acetic acid hauv 100 ml ntawm 10% tov. Tom qab ntawd los ntawm kev faib cov moles los ntawm qhov ntim ntawm thawj kua qaub uas tau diluted rau hauv 100 mL (vim cov moles ntawm acetic acid Txhua yam yog los ntawm 10 ml ntawm vinegar ), lub molarity ntawm lub acetic acid nrhiav tau.
Ib tug kuj yuav nug, pes tsawg grams ntawm acetic acid nyob rau hauv vinegar? Qhov loj feem pua ntawm acetic acid hauv vinegar yog 5.0%, yog li qhov loj ntawm acetic acid tam sim no hauv 100 grams vinegar yog 5,0g ua.
Tom qab, lo lus nug yog, qhov nruab nrab feem pua ntawm ch3cooh hauv cov qauv vinegar yog dab tsi?
tus feem pua ntawm CH3COOH hauv vinegar yog 5.01 feem pua ib 4,66.
Dab tsi yog pH ntawm vinegar?
Ntsuas qhov pH Tus nqi ntawm Vinegar Distilled dawb vinegar feem ntau ntsuas ib ncig pH 2.4, nrog lub zog ntawm 5%. Qhov qis dua pH , qhov ntau acid vinegar yog. Yog koj siv vinegar rau cov kua pib ua kombucha, nws yuav tsum muaj pH tsis siab tshaj 4.5, thiab lub zog tsawg kawg yog 5%.
Pom zoo:
Muaj pes tsawg feem pua ntawm cov neeg Australian nyob hauv cheeb tsam nroog?
89% Ib yam li ntawd, nws tau nug, vim li cas tib neeg thiaj nyob hauv nroog hauv tebchaws Australia? Urbanization - qhov nce ntawm feem pua ntawm cov neeg nyob hauv nroog piv rau cov nyob deb nroog thaj chaw - yog ib qho kev hloov pauv tseem ceeb tshaj plaws hauv tib neeg pejxeem tiam sis puas tau sau tseg.
Muaj pes tsawg zaus ntau dua tus lej hauv qhov chaw thib kaum dua li qhov chaw pua pua?
Tus nqi ntawm tus lej 8 hauv qhov chaw thib kaum yog 10 npaug ntau dua tus nqi ntawm tus lej 8 hauv qhov chaw puas
Muaj pes tsawg moles nyob rau hauv 1 mL ntawm acetic acid?
Yog tias koj xav tias daim duab no, nws txhais tau tias 20 ml yuav muaj 1 ml ntawm acetic acid. Qhov ceev ntawm acetic acid yog 1.05 g / cc ntawm ambient kub, thiab molar loj yog 60.05 g / mol. Yog li ntawd hauv 20 ml ntawm vinegar, koj yuav muaj (1x 1.05 / 60.05) = 0.0175 moles ntawm aceticacid
Muaj pes tsawg bps nyob rau hauv ib feem pua?
Ib lub hauv paus ntsiab lus yog sib npaug rau 1/100th ntawm 1%, lossis 0.01%, lossis 0.0001, thiab yog siv los txheeb xyuas qhov feem pua ntawm kev hloov pauv nyiaj txiag. Cov kev sib raug zoo ntawm feem pua ntawm cov kev hloov pauv thiab cov ntsiab lus hauv paus tuaj yeem sau tau raws li hauv qab no: 1% hloov = 100 lub hauv paus ntsiab lus thiab 0.01% = 1 lub hauv paus ntsiab lus
Qhov feem pua ntawm acetic acid yog dab tsi?
Qhov feem pua ntawm acetic acid yog 39.9% C, 6.7% H, thiab 53.4% O