中四化學科問題

🎓 學業台標準及測試

Ellen

2008-03-27 11:43 pm

為什麼濃ammonia solution容易釋放出ammonia gas?

另外想問問以下化學反應方程式的ionic equation怎樣寫?

CaCO3 + 2CH3COOH ------- (CH3COO)2Ca + H2O + CO2

更新1:

CaCO3(s) + 2CH3COOH(aq) ------- (CH3COO)2Ca(aq) + H2O(l) + CO2(g) 但CaCO3係solid黎架wor... 都可以轉做ionic equation架咩???

回答 (1)

用戶7369

2008-03-28 12:15 am

✔ 最佳答案

ammonia solution is a weak alkali. it is partially ionized in
water. a lot of ammonia molecules is still in water.
so the concentration is high, the ammonia gas will come out.

(CO3)2- +2H+ --------> CO2+ H2O

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