更新1:
What is the correct reaction? CH3-COOH+Na2CO3->CH3-COONa+NaHCO3 or CH3-COONa+NaHCO3->CH3-COOH+Na2CO3
What is the correct reaction? CH3-COOH+Na2CO3->CH3-COONa+NaHCO3 or CH3-COONa+NaHCO3->CH3-COOH+Na2CO3?
回答 (3)
2016-07-12 10:32 am
✔ 最佳答案
The first reaction is correct:CH₃COOH + Na₂CO₃ → CH₃COONa + NaHCO₃
CH₃COOH is acidic, while Na₂CO₃ is basic (alkaline). Therefore, neutralization occurs. The net ionic equation is :
CH₃COOH + CO₃²⁻ → CH₃COO⁻ + HCO₃⁻
The second reaction is incorrect :
CH₃COONa + NaHCO₃ → no reaction
This is because both CH₃COONa + NaHCO₃ are slightly basic.
2016-07-12 10:01 pm
NaCH₂O+zOMG-WTF+LOL-ROFL+;)
2016-07-12 2:25 pm
This neutralisation takes place in 2 steps.
First neutralisation step:
CH3COOH + Na2CO3 → CH3COONa + NaHCO3
Then with further addition of acid , CH3COOH
CH3COOH + NaHCO3 → CH3COONa + H2O + CO2
The overall reaction , when 1 mol Na2CO3 is reacted with 2 mol CH3COOH:
2CH3COOH + Na2CO3 → 2CH3COONa + CO2 + H2O.
First neutralisation step:
CH3COOH + Na2CO3 → CH3COONa + NaHCO3
Then with further addition of acid , CH3COOH
CH3COOH + NaHCO3 → CH3COONa + H2O + CO2
The overall reaction , when 1 mol Na2CO3 is reacted with 2 mol CH3COOH:
2CH3COOH + Na2CO3 → 2CH3COONa + CO2 + H2O.
收錄日期: 2021-05-01 13:13:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160712010127AArrNyU