Muaj pes tsawg feem pua ntawm acetic acid nyob hauv vinegar?
Muaj pes tsawg feem pua ntawm acetic acid nyob hauv vinegar?

Video: Muaj pes tsawg feem pua ntawm acetic acid nyob hauv vinegar?

Video: Muaj pes tsawg feem pua ntawm acetic acid nyob hauv vinegar?
Video: Kx Tsawj Pes Vaj - Vaajtswv Muaj Feem 2024, Kaum ib hlis
Anonim

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%.

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