02/24 Flashcards
1
Q
what causes vapor pressure lowering in a solution with a nonvolatile solute
A
the solute impedes the solvent so there are less molecules in the gas phase
2
Q
When mixed with a nonvolatile solute, what happens to the freezing point? Why?
A
the freezing point is lower, the solute molecules interfere with the pure crystalline structure formation of the solvent and cause the solution to have a lower freezing temperature
3
Q
what mixed with a nonvolatile solute, what happens to the boiling point
A
the boiling point of the solution increases
4
Q
what is molality
A
moles of solute/ kg of solvent
5
Q
what is the vant hoff factor
A
the number of species/ ions in solution
6
Q
what is the i value of NaCl
A
2
7
Q
what is the i value of a non electrolyte
A
1
8
Q
A
