試題詳解

79. Find the mass percent ofCuSO₄, in a solution whose density is 1.30 g/mL and whose molarity is 1.22 M. (The atomic mass of Cu is 63.55.)
(A) 22.1%
(B) 31.6%
(C) 15.0%
(D) 12.4%
(E) none of these