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Byju's Answer
Standard XII
Chemistry
Enthalpy of Solution
The percentag...
Question
The percentage composition of Mohr's salt is as follows. Fe²+=14.32% NH4=9.20% SO4²‐=49% REST being water of crystallization.Find the empirical formula of Mohr's salt.
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Solution
Elements
Percentage
Atomic mass
Relative mass of atoms
Simplest ratio
F
e
14.32%
56
14.32
56
=
0.25
0.25
0.25
=
1
N
H
4
9.20%
18
9.20
18
=
0.50
0.5
0.25
=
2
H
2
O
27.57%
18
27.57
18
=
1.5
1.5
0.25
=
6
S
O
4
49%
96
49
96
=
0.5
0.5
0.25
=
2
Empirical formula =
F
e
(
N
H
4
)
2
(
H
2
O
)
6
S
O
2
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Similar questions
Q.
Mohr's salt is dissolved in dil.
H
2
S
O
4
instead of distilled water to?
Q.
Consider a titration of potassium dichromate solution with acidified Mohr's salt solution using diphenylamine as indicator. The number of moles of Mohr's salt required per mole of dichromate is:
(The formula for Mohr's salt is
F
e
S
O
4
.
(
N
H
4
)
2
S
O
4
.6
H
2
O
)
Q.
The formula mass of Mohr's salt is
392
. The iron present in it is oxidised by
K
M
n
O
4
in acid medium. The equivalent mass of Mohr's salt is:
Q.
No. of water molecules in mohr's salt is :
Q.
The number of electrons in oxygen atom in 0.3 g-molecule of Mohr's salt
F
e
S
O
4
(
N
H
4
)
2
S
O
4.
6
H
2
O
is:
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