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Byju's Answer
Standard XII
Chemistry
PTFE
What is the m...
Question
What is the molality of NaOH in solution if 50 g of an aq. solution contains 4 g of NaOH?
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Similar questions
Q.
What is the molarity of an
N
a
O
H
solution if 250 mL contains 1 mg of
N
a
O
H
?
Q.
An aqueous solution of
N
a
O
H
having density
1.1
k
g
/
d
m
3
contains
0.02
mole fraction of
N
a
O
H
.
The molality and molarity of
N
a
O
H
solution respectively, are
:
Q.
4.0 g of NaOH contained in one deciliter of a solution. Calculate the following in this solution:
(i) Mole fraction of NaOH
(ii) Molality of NaOH
(iii) Molality of NaOH
(iii) Molarity of NaOH.
(At. wt. of Na = 23, O = 16; Density of NaOH solution is 1.038
g
/
c
m
3
).
Q.
100
mL solution of
N
a
O
H
(containing
4
g
N
a
O
H
per litre) and
50
mL of
H
C
l
(containing
7.3
g
H
C
l
per litre) react as follows,
N
a
O
H
(
a
q
)
+
H
C
l
(
a
q
)
⟶
N
a
C
l
(
a
q
)
+
H
2
O
(
l
)
0.5
g of
N
a
C
l
is formed. Thus, unreacted
N
a
O
H
is
:
Q.
A
300
g
,
30
%
(w/w) NaOH solution is mixed with
500
g
40
%
(w/w)
N
a
O
H
solution. What is the molality of final solution?
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