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醋酸加碳酸氫鈉

醋酸(CH3COOH)是一種弱酸,常見于家用醋中,而碳酸氫鈉(NaHCO3)又稱小蘇打,是一種堿性化合物。
將這兩種物質(zhì)混合在一起時,醋酸會向碳酸氫鈉捐獻一個質(zhì)子(H+)。這種質(zhì)子轉(zhuǎn)移反應(yīng)會形成碳酸(H2CO3),碳酸不穩(wěn)定,會迅速分解成二氧化碳(CO2)和水(H2O)。該方程式可分解為幾個步驟:
步驟 1:CH3COOH + NaHCO3 → CH3COO-Na+ + H2CO3
步驟 2:H2CO3 → CO2 + H2O
總的來說: CH3COOH + NaHCO3 → CO2 + H2O + NaCH3COO
因此,總的來說,醋酸和碳酸氫鈉混合后會產(chǎn)生二氧化碳?xì)怏w,從而導(dǎo)致該反應(yīng)中常見的起泡或氣泡效果。其他產(chǎn)物是水和。

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