Find the number of oxygen atoms in 100 millimoles of [Fe(H2O)5NO]SO4
A
0.01NA
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B
0.1NA
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C
NA
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D
10NA
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Solution
The correct option is CNA Number of O - atoms in one formula unit of [Fe(H2O)5NO]SO4=10
Therefore, number of O - atoms in one mole of [Fe(H2O)5NO]SO4=10NA
So, number of O-atoms in 100 millimoles of [Fe(H2O)5NO]SO4 =100×10−3×10NA =NA