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Standard IX
Chemistry
Hydrated Salts
13. How to fi...
Question
13. How to find the n-factor of double salt with proper explanation. K2SO4. Al2(SO4)3. 24H2O
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Similar questions
Q.
How many gram ions of
S
O
−
2
4
are present in
1.25
mole of
K
2
S
O
4
⋅
A
l
2
(
S
O
4
)
3
⋅
24
H
2
O
.
Q.
How many gram ions of
S
O
2
−
4
are present in 1 gram molecule of
K
2
S
O
4
.
A
l
2
(
S
O
4
)
3
.
24
H
2
O
?
Q.
Potassium alum,
K
A
l
(
S
O
4
)
2
⋅
12
H
2
O
is obtained in the form of octahedral crystals when a solution of
K
2
S
O
4
and
A
l
2
(
S
O
4
)
3
is concentrated by evaporation. Suggest specific experiments to specify whether it is a complex or double salt.
Q.
(A) is binary orange coloured paramnetic compound of a univalent cation. 1.422 g of (A) reacts completely with 0.321 g of sulphur ina evacuated and sealed tube to give 1.743 g of a while crystalline solid (B) that forms hydrated double salt (C) with
A
l
2
(
S
O
4
)
3
; Here, compounds (A), (B), and (C) are
K
O
2
,
K
2
S
O
4
and
K
2
S
O
4
.
A
l
2
(
S
O
4
)
3
.
24
H
2
O
respectively.
If true enter 1, else enter 0.
Q.
Is
(
K
2
S
O
4
⋅
C
r
2
(
S
O
)
4
)
3
⋅
24
H
2
O
correct formula of chrome alum ?
If yes enter 1, else enter 0.
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