Some 200 mg of seo2 10 to the power 20 molecules are removed how many moles of so2 are left
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Amount of
C
O
2
taken
=
200
m
g
=
0.2
g
44
g
mol
=
4.55
×
10
−
3
m
o
l
Number of mlecules of
C
O
2
removed
=
10
21
1 mol =
6.023
×
10
23
molecules of
C
O
2
10
21
molecules
=
10
21
6.023
×
10
23
m
o
l
=
1.66
×
10
−
3
m
o
l
C
O
2
left
=
(
4.55
−
1.66
)
×
10
−
3
m
o
l
=
2.89
×
10
−
3
m
o
l
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