Two aqueous solutions are prepared: 2.0 m Cu(NO 3 ) 2 and 2.0 m NaBr.Which of the following statements is true?

The Cu(NO3)2 solution dissociates into three ions (Cu^2+ and 2 NO3^-), while NaBr dissociates into two ions (Na^+ and Br^-). More ions result in a lower vapor pressure and lower freezing point for the Cu(NO3)2 solution compared to the NaBr solution.

Two aqueous solutions are prepared: 2.0 m Cu(NO 3 ) 2 and 2.0 m NaBr.Which of the following statements is true?

The Cu(NO3)2 solution dissociates into three ions (Cu^2+ and 2 NO3^-), while NaBr dissociates into two ions (Na^+ and Br^-). More ions result in a lower vapor pressure and lower freezing point for the Cu(NO3)2 solution compared to the NaBr solution.

Solved

Two Aqueous Solutions Are Prepared: 2

Question 46

Multiple Choice

Two aqueous solutions are prepared: 2.0 m Cu(NO₃) ₂ and 2.0 m NaBr.Which of the following statements is true?

A) The Cu(NO₃) ₂ solution has a higher vapor pressure and lower freezing point than the NaBr solution.
B) The Cu(NO₃) ₂ solution has a higher vapor pressure and higher freezing point than the NaBr solution.
C) The Cu(NO₃) ₂ solution has a lower vapor pressure and lower freezing point than the NaBr solution.
D) The Cu(NO₃) ₂ solution has a lower vapor pressure and higher freezing point than the NaBr solution.
E) None of these statements is true.