問題詳情
43.右圖為三種不同固體鹽類及NH3在水中的溶解度（克/100克水）曲線，今在室溫25 ℃，配製此四種試樣的飽和溶液，分別過濾得到澄清溶液100克後，做了下列實驗。試問下列敘述哪些正確？（應選兩項） 
(A)升溫或降溫，NH3溶液都不會有氣體逸出
(B)若將各溶液分別降溫至15 ℃，則丙溶液會有晶體沉澱析出
(C)若將各溶液分別降溫至5 ℃，則甲溶液析出晶體的重量大於乙溶液
(D)若將各溶液的溫度，從25 ℃升溫至40 ℃，則甲與乙晶體會析出來
(E)若將各溶液升溫至60 ℃後過濾，所得澄清溶液在60 ℃蒸發。當蒸發到溶液的體積變為原體積的約十分之九時，則只有丙溶液有沉澱析出。
(A)升溫或降溫，NH3溶液都不會有氣體逸出
(B)若將各溶液分別降溫至15 ℃，則丙溶液會有晶體沉澱析出
(C)若將各溶液分別降溫至5 ℃，則甲溶液析出晶體的重量大於乙溶液
(D)若將各溶液的溫度，從25 ℃升溫至40 ℃，則甲與乙晶體會析出來
(E)若將各溶液升溫至60 ℃後過濾，所得澄清溶液在60 ℃蒸發。當蒸發到溶液的體積變為原體積的約十分之九時，則只有丙溶液有沉澱析出。
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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