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Chemistry
Chemistry
Problem
824 g of
FeSO
4
⋅
(
NH
4
)
2
SO
4
⋅
X
H
2
O
\text{FeSO}_4 \cdot (\text{NH}_4)_2\text{SO}_4 \cdot X\text{H}_2\text{O}
FeSO
4
⋅
(
NH
4
)
2
SO
4
⋅
X
H
2
O
were dissolved in
250
mL
250\text{ mL}
250
mL
of solution.
20
mL
20\text{ mL}
20
mL
of this solution required
20
mL
20\text{ mL}
20
mL
of
KMnO
4
\text{KMnO}_4
KMnO
4
containing
3.52
g
3.52\text{ g}
3.52
g
of 90% by mass
KMnO
4
\text{KMnO}_4
KMnO
4
dissolved per litre. The value of 'X' is .....
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