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Chemistry
Chemistry
Problem
A chemist isolates
4.00
×
10
−
3
kg
4.00 \times 10^{-3} \, \text{kg}
4.00
×
1
0
−
3
kg
of ammonium phosphate,
(
NH
4
)
3
PO
4
(\text{NH}_4)_3\text{PO}_4
(
NH
4
)
3
PO
4
. Atomic masses:
N
=
14.01
N=14.01
N
=
14.01
,
H
=
1.008
H=1.008
H
=
1.008
,
P
=
30.97
P=30.97
P
=
30.97
,
O
=
16.00
u
O=16.00\,\text{u}
O
=
16.00
u
. Calculate the number of
(
NH
4
)
3
PO
4
(\text{NH}_4)_3\text{PO}_4
(
NH
4
)
3
PO
4
formula units present in the sample. Give your answer in scientific notation.
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