Determine the number of moles of oxygen atoms in each of the following: 4.49 mol h2o2, 2.17 mol n2o , 2.33×10−2 mol h2co3, 24.3 mol co2

Answer :

(1) The 4.49 mol contains 8.98 moles of oxygen atoms.

(2) The 2.17 mol contains 2.17 moles of oxygen atoms.

(3) The mol contains 0.0699 moles of oxygen atoms.

(4) The 24.3 mol contains 48.6 moles of oxygen atoms.

Explanation :

To determine the number of moles of oxygen atoms in each of the following compound:

(1) 4.49 mol

In this compound, there are 2 atoms of hydrogen and 2 atoms of oxygen.

As, 1 mole of contains 2 moles of oxygen atoms

So, 4.49 moles of contains moles of oxygen atoms

Thus, the 4.49 mol contains 8.98 moles of oxygen atoms.

(2) 2.17 mol

In this compound, there are 2 atoms of nitrogen and 1 atom of oxygen.

As, 1 mole of contains 1 mole of oxygen atoms

So, 2.17 moles of contains 2.17 moles of oxygen atoms

Thus, the 2.17 mol contains 2.17 moles of oxygen atoms.

(3) mol

In this compound, there are 2 atoms of hydrogen, 1 atom of carbon and 3 atoms of oxygen.

As, 1 mole of contains 3 moles of oxygen atoms

So, moles of contains moles of oxygen atoms

Thus, the mol contains 0.0699 moles of oxygen atoms.

(4) 24.3 mol

In this compound, there are 1 atom of carbon and 2 atom of oxygen.

As, 1 mole of contains 2 mole of oxygen atoms

So, 24.3 moles of contains moles of oxygen atoms

Thus, the 24.3 mol contains 48.6 moles of oxygen atoms.

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