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Chemistry
Chemistry
Problem
Which of the following is the composition of the yellow precipitate obtained in the test for phosphates using ammonium molybdate? a.
(
NH
4
)
3
[
PMo
12
O
40
]
(\text{NH}_4)_3[\text{PMo}_{12}\text{O}_{40}]
(
NH
4
)
3
[
PMo
12
O
40
]
b.
(
NH
4
)
3
[
PMo
12
O
36
]
(\text{NH}_4)_3[\text{PMo}_{12}\text{O}_{36}]
(
NH
4
)
3
[
PMo
12
O
36
]
c.
(
NH
4
)
3
PO
4
⋅
10
MoO
3
(\text{NH}_4)_3\text{PO}_4 \cdot 10\text{MoO}_3
(
NH
4
)
3
PO
4
⋅
10
MoO
3
d.
(
NH
4
)
3
PO
4
⋅
14
MoO
3
(\text{NH}_4)_3\text{PO}_4 \cdot 14\text{MoO}_3
(
NH
4
)
3
PO
4
⋅
14
MoO
3
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