31. Calculate the molality of C₂H₅OH in a water solution that is prepared by mixing 50.0 mL of C₂H₅OH with 50.0 mL of H₂O at 20°C. The density of the C₂H₅OH is 0.789 g/mL at 20°C.
(A) 17.2 m
(B) 4.28 m
(C) 1.24 m
(D) 8.56 m

阿摩線上測驗 · 2026-09-29T14:07:07+08:00

31. Calculate the molality of C2H5OH in a water solution that is prepared by mixing 50.0 mL of C2H5OH with 50.0 mL of H2O at 20°C. The density of the C2H5OH is 0.789 g/mL at 20°C. (A) 17.2 m (B) 4.28 m (C) 1.24 m (D) 8.56 m

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31. Calculate the molality of C₂H₅OH in a water solution that is prepared by mixing 50.0 mL of C₂H₅OH with 50.0 mL of H₂O at 20°C. The density of the C₂H₅OH is 0.789 g/mL at 20°C.
(A) 17.2 m
(B) 4.28 m
(C) 1.24 m
(D) 8.56 m

詳解 (共 1 筆)

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相關試卷

31. Calculate the molality of C2H5OH in a water solution that is prepared by mixing 50.0 mL of C2H5OH with 50.0 mL of H2O at 20°C. The density of the C2H5OH is 0.789 g/mL at 20°C.(A) 17.2 m(B) 4.28 m(C) 1.24 m(D) 8.56 m

詳解 (共 1 筆)

相關試題

相關試卷

31. Calculate the molality of C₂H₅OH in a water solution that is prepared by mixing 50.0 mL of C₂H₅OH with 50.0 mL of H₂O at 20°C. The density of the C₂H₅OH is 0.789 g/mL at 20°C.
(A) 17.2 m
(B) 4.28 m
(C) 1.24 m
(D) 8.56 m