1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard XII
Chemistry
Depression in Freezing Point
What mass of ...
Question
What mass of ethylene glycol (Molar mass
=
62.0
g
m
o
l
−
1
) must be added to
5.50
kg of water to lower the freezing point of water from
0
o
C to -
10
o
C ? (
K
f
for water
=
1.86
K Kg
m
o
l
−
1
)
Open in App
Solution
Δ
T
f
=
K
f
×
m
m
=
W
B
M
B
×
1000
W
A
10
=
1.86
×
W
B
62
×
1000
5500
W
B
=
1833.3
g
m
Suggest Corrections
1
Similar questions
Q.
What mass of ethylene glycol (molar mass 62.0 g
m
o
l
−
1
) must be added to 5.50 kg of water to lower the freezing point of water from
0
0
C to -
10.0
0
C
?
(
K_f
f
o
r
w
a
t
e
r
=
1.86
K
k
g
mol^{-1}$).
Q.
Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to
4
kg of water to prevent it from freezing at
−
6
o
C
will be :
(
K
f
for water =
1.86
K kg/mol and molar mass of ethylene glycol =
62
g mol
−
1
)
Q.
The freezing point of a solution containing 28.335
c
m
3
of ethylene glycol in 50 g water is found to be
–
34
∘
C. Assuming ideal behaviour, calculate the density of ethylene glycol.
K
f
for water 1.86 K kg
m
o
l
−
1
.
___
Q.
Calculate the amount of
C
a
C
l
2
(molar mass = 111g/mol) which must be added to 580g of water so that freezing point lower by 2K, assuming
C
a
C
l
2
is completely dissociated:
[
K
f
for water = 1.86 K kg/mol].
Q.
45
g of ethylene glycol
(
C
2
H
6
O
2
)
is mixed with
600
g of water. The freezing point of the solution is (
K
f
for water is
1.86
K kg
m
o
l
−
1
).
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Depression in Freezing Point
CHEMISTRY
Watch in App
Explore more
Depression in Freezing Point
Standard XII Chemistry
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app