Answer : The correct option is, (a)
Explanation :
As we know that,
1 mole of substance contains number of atoms.
As we are given that:
The moles of = 2.50 moles
Now we have to calculate the number of atoms present in molecule.
In , there are 3 atoms in molecule that means 1 atom of carbon and 2 atoms of oxygen.
As, 1 moles of contains number of atoms.
So, 2.50 moles of contains number of atoms.
Therefore, the number of atoms in 2.50 moles of are