Video: Yuav ua li cas ua ib lub hnab airbag nrog baking soda thiab vinegar?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua ntej peb ncuav 200 ml ntawm vinegar nyob rau hauv ib tug beaker thiab ncuav nws mus rau hauv lub Ziploc rov qab. Tom qab ntawd peb muab lub hnab yas me me thiab qhov 14g ntawm ci dej qab zib hauv nws. Peb mam li tshuab cua rau hauv lub hnab nrog lub vinegar thiab kaw nws kaw. Peb rapped cov roj hmab band ncig lub hnab kom ruaj ntseg.
Hauv qhov no, qhov sib npaug sib npaug rau vinegar thiab baking soda yog dab tsi?
Thaum peb ua ke ci dej qab zib thiab vinegar, cov tshuaj bubbled thiab fizzed; qhia meej txog cov tshuaj tiv thaiv kab mob. Cov tshuaj tiv thaiv tuaj yeem piav qhia nrog qhov sib npaug ntawm: NaHCO 3 HC2H302 = NaC2H302 + H2O + CO2 (los yog sodium bicarbonate ntxiv acetic acid sib npaug sodium acetate dej plus carbon dioxide ).
baking soda thiab vinegar cuam tshuam li cas rau stoichiometry? Ib qho kev xav hauv qab yog tias qhov ci dej qab zib yog qhov txwv tsuas yog reactant. Hauv lwm lo lus, muaj qhov tseem ceeb ntawm kev txwv tsis pub muaj acetic acid nyob rau hauv vinegar lub raj mis, thiab cov tshuaj tiv thaiv cov zis tsuas yog dictated los ntawm tus nqi ntawm ci dej qab zib koj ntxiv - txhua mole ntxiv ua rau mole ntawm carbon dioxide tsim.
Ib yam li ntawd, koj tuaj yeem nug, ntau npaum li cas co2 baking soda thiab vinegar tsim?
Yog li, piv txwv li, koj siv tib qhov sib npaug ntawm cov reactants raws li lawv qhov hnyav molecular yog, 44 grams ntawm carbon dioxide yuav raug tsim tawm uas yog sib npaug acetic acid tam sim no vinegar yuav nkag siab nrog ci dej qab zib ( sodium bicarbonate ) tsim sodium acetate nrog effervescence ntawm carbon dioxide.
Dab tsi ua ke ntawm vinegar thiab ci dej qab zib tsim qhov tawg loj tshaj plaws?
Ntxiv vinegar rau ci dej qab zib muab koj cov tshuaj tiv thaiv tam sim ntawd. Ntxiv ci dej qab zib rau vinegar , cov tshuaj tiv thaiv yog ncua, tab sis tom qab ntawd fizzes tib tus nqi. Ntau vinegar zoo dua. A 12 rau 1 ratio ntawm vinegar rau ci dej qab zib ua rau lub fizzing tawg!
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