問題詳情
9. Calculate the molality of C2H5OH in a water solution that is prepared by mixing 50.0 mL of C2H5OH with100.0 mL of H2O at 20℃. The density of the C2H5OH is 0.789 g/mL at 20℃. (C2H5OH:46.07 g/mol. Density of H2O is 1 g/cm3).
(A) 0.086 m
(B) 0.094 m
(C) 1.24 m
(D) 8.56 m
(E) none of these
(A) 0.086 m
(B) 0.094 m
(C) 1.24 m
(D) 8.56 m
(E) none of these
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