the number of moles in so3 which contains 8.0g oxygen is
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Number of oxygen atoms in 8 g of ozone is :
Medium
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Correct option is
B
2
6.02×10
23
The number of moles is the ratio of mass to molar mass.
Number of moles of ozone =
46
8
=
6
1
The number of molecules is the product of the number of moles and the Avogadro's number N
A
which is 6.023×10
23
.
Number of molecule of O
3
=
6
1
×N
A
1 molecule of ozone contains 3 O atoms.
Hence, the number of O atoms is thrice the number of ozone molecules.
Number of atom of oxygen = 3×
6
1
×N
A
=
2
1
N
A
=
2
6.02×10
23
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