a. Is -8.0C°. What is the molal concentration of the solution? (K; =-1 a-1.86 b-4.3 C-4.5 d-14.8 ANS: B

Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter10: Properties Of Solutions
Section: Chapter Questions
Problem 7RQ
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Question
47-What is the approximat
CaCl2 solution?( hy=-1
anonelectroly
ANS: C
a-(-0.019)
b-(-0.
ANS: C
d-14.8
48-What is the approxim
FeCla solution? (K=
a-(-0.019)
b-4.3
C-4.5
a-1.86
42-What is the boiling-point elevation of a solution made from 10.0g of a
nonelectrolyte solute and 300.0g of water ?The molar mass of the
solute is 50.0g and the molal boiling-point constant for water is
0.51C/m
ANS: B
ANS: D
49-What is the approxi
Na SO, solution? (I
a-(-0.11)
b-
ANS: B
d-0.34
a-0.01
b-0.2
c-0.32
50-Actual freezing-po
ANS: D
than the calculate
43-A water solution containing an unknown quantity of a nonelectrolyte
solute has a freezing-point of -0.21C° .What is the molal concentration
a-ion repulsion.
b-more complete
the solution If K =-1.86C° ?
c-ion attraction.
a-0.11
b-0.12
c-1.11
d-1.1
d-higher than ex
ANS: A
ANS: C
eacher
Jalal.shahbaz
Teacher
Transcribed Image Text:47-What is the approximat CaCl2 solution?( hy=-1 anonelectroly ANS: C a-(-0.019) b-(-0. ANS: C d-14.8 48-What is the approxim FeCla solution? (K= a-(-0.019) b-4.3 C-4.5 a-1.86 42-What is the boiling-point elevation of a solution made from 10.0g of a nonelectrolyte solute and 300.0g of water ?The molar mass of the solute is 50.0g and the molal boiling-point constant for water is 0.51C/m ANS: B ANS: D 49-What is the approxi Na SO, solution? (I a-(-0.11) b- ANS: B d-0.34 a-0.01 b-0.2 c-0.32 50-Actual freezing-po ANS: D than the calculate 43-A water solution containing an unknown quantity of a nonelectrolyte solute has a freezing-point of -0.21C° .What is the molal concentration a-ion repulsion. b-more complete the solution If K =-1.86C° ? c-ion attraction. a-0.11 b-0.12 c-1.11 d-1.1 d-higher than ex ANS: A ANS: C eacher Jalal.shahbaz Teacher
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