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複選題14. 有下列(a)蔗糖、(b)氯化鐵(III)、(c)硝酸銀水溶液各 0.1 M,任取兩種溶液等體積混合成甲:(a)+(b),乙:(a)+(c),丙:(b)+(c),則下列敘述哪些正確? (A
問題詳情
複選題
14. 有下列(a)蔗糖、(b)氯化鐵(III)、(c)硝酸銀水溶液各 0.1 M,任取兩種溶液等體積混合成甲:(a)+(b),乙:(a)+(c),丙:(b)+(c),則下列敘述哪些正確?
(A)有效濃度:甲>乙>丙
(B)沸點: 甲>丙>乙
(C)凝固點:乙>丙>甲
(D)蒸氣壓:乙>甲>丙
(E)滲透壓:丙>乙>甲
參考答案
答案:B,C
統計:A:0,B:1,C:1,D:0,E:1
難度:計算中
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複選題13. 鋁粉與過氯酸銨的混合物可用為太空梭火箭推進器的燃料,其反應式如下:a Al(s)+b NH4ClO4(s) → c Al2O3(s)+d AlCl3(s)+e NO(g)+f H2O(g
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複選題15. 容器中以半透膜分成甲、乙兩個區域如附圖,若裝入下列溶液時,哪些組合會使乙區域的液面升高? (A) 10% 蔗糖 5% 葡萄糖 (B) 0.5 M NaCl 0.5 M (NH2)2CO(
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