Question Answer A 0.100m solution of which one of the following solutes will have the lowest vapor pressure?  Ca(ClO4)  Al(ClO4)2 KClO4 NaCl   What is the molality of HCl in a solution that is prepared by dissolving 5.5g of HCl in 200g of C2H6O? 1.3 m 3.3 * 10^(-2) m 7.5 * 10^(-4) m 0.75 m   What is the molarity of sodium chloride in solution that is 13.0% by mass sodium chloride and that has a density of 1.10 g/mL? 2.23 2.45 2.56 143

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A 0.100m solution of which one of the following solutes will have the lowest vapor pressure?

  •  Ca(ClO4)
  •  Al(ClO4)2
  • KClO4
  • NaCl
 

What is the molality of HCl in a solution that is prepared by dissolving 5.5g of HCl in 200g of C2H6O?

    • 1.3 m
    • 3.3 * 10^(-2) m
    • 7.5 * 10^(-4) m
    • 0.75 m
 

What is the molarity of sodium chloride in solution that is 13.0% by mass sodium chloride and that has a density of 1.10 g/mL?

  • 2.23
  • 2.45
  • 2.56
  • 143
 

What is the molality of Pb(NO3)2 in a 0.726 M solution? The density of the solution is 1.202 g/mL.

  • 0.650 m
  • 0.476 m
  • 0.819 m
  • 0.755 m
 

The following are colligative properties of solutions EXCEPT one.

  • An increase in the osmotic pressure of a solution upon the addition of more solute
  • Depression of the freezing point of a solution upon addition of a solute to a solvent
  • Depression of vapor pressure upon addition of a solute to a solvent
  • The increase of reaction rates with increase in temperature
 

What is the mole fraction of urea (MW = 60.0 g/mol) in a solution prepared by dissolving 16 g of urea in 39 g of H2O?

    1. 0.13
    2. 0.11
    3. 0.58
    4. 0.37
 

 

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