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23. 將酚酞試劑滴入某化合物的0.1 M水溶液中能呈現紅色,則此溶液可能是下列何者?(A)MgSO4 (B) Ba(NO3)2 (C) NH4Cl (D) CH3COOK
問題詳情
23. 將酚酞試劑滴入某化合物的0.1 M水溶液中能呈現紅色,則此溶液可能是下列何者?
(A)MgSO4
(B) Ba(NO3)2
(C) NH4Cl
(D) CH3COOK
參考答案
用户評論
【
阿泥
】評論
from:google
【
Ivan Lia
】評論
(A)中性(B)中性(C) NH4+:酸性(D) CH3COO-:鹼性
上一篇 :
22. 在一大氣壓25℃時,下列何種氣體的性質最接近理想氣體?(A)氮氣 (B) 氯化氫 (C) 氨氣 (D) 正丁烷
下一篇 :
24. 在一大氣壓 25oC 中燃燒 40.0 升的汽油(密度為 0.740 g/mL)所放出之熱量,相當於燃燒多少體積的氫氣?(假設每克氫氣的燃燒熱為每克汽油的三倍)(A)1.2 x 105 L (
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