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13.等质量的CuO和MgO粉末分别溶于相同体积的硝酸中,得到的Cu(NO3)2和Mg(NO3)2溶液的浓度分别为a mol•L-1和b mol•L-1。则a与b的关系为(A)a=b (B)a=2b
問題詳情
13.等质量的CuO和MgO粉末分别溶于相同体积的硝酸中,得到的Cu(NO3)2和Mg(NO3)2溶液的浓度分别为a mol•L-1和b mol•L-1。则a与b的关系为
(A)a=b
(B)a=2b
(C)2a=b
(D)a=5b
參考答案
答案:C
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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