Colligative Properties
Authored by Johnthan Gordon
Chemistry
KG - University
Used 47+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the freezing point of an antifreeze solution created by adding 651 g of ethylene glycol (CH2(OH)CH2(OH)) to 2505 g of water? Kf = 1.86 oC/m
-4.19 oC
2.2 oC
0 oC
-7.79 oC
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What observation(s) reflect(s) colligative properties?
I. A 0.5 m NaBr soln has a higher vapor pressure than 0.5 m BaCl2 soln.
II. A 0.5 m NaOH soln freezes at a lower T. than pure water.
III. Pure water freezes at a higher T than pure methanol.
only I
only II
only III
1 & II
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the van't Hoff factor for the compound Na2SO4
1
3
5
7
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the van't Hoff factor for the compound CH3OH?
1
3
6
9
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calculate the freezing point of a solution made from 72.33 g of propane, C3H8, dissolved in 250.0 mL of water.
-24.810C
-9.550C
-6.500C
-12.200C
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