問題詳情

58. If 30 mL of 5.0 x 10-4M Ca(NO 3)2 are added to 70 mL of 2.0 ✖ 10-4 M NaF, will a precipitate occur? (Ksp of CaF2 = 4.0 ✖ 10-11 )
(A) No, because the ion product is greater than iTSp.
(B) Yes, because the ion product is less than XSp.
(C) No, because the ion product is less than ZSp.
(D) Not enough information is given.
(E) Yes, because the ion product is greater than Ksp.

參考答案

答案:C
難度:適中0.666667
統計:A(0),B(0),C(2),D(0),E(0)

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