Question

No.of oxygen atom in 4.4g of co2

Answer 1

Given mass of CO2 = 4.4 g

And, Molar Mass of CO2 = 44g

So, Number of Moles in 4.4 gram CO2 =

= 4.4 / 44 = 0.1 moles.

Now, Number of atoms in One Mole = 6.022 × 10^23 atoms.

So, Number of atoms in 0.1 Moles =

= 0.1 × 6.022 × 10^23

= 6.022 × 10^22 atoms.

Now, In a CO2 molecule, number of Oxygen atoms is 2.

So,total number of Oxygen Atoms in 4.4 g of CO2 =

= 2 × 6.022 × 10^22

= 1.2044 × 10^23 atoms.........●

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Hope it was helpful.