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Mole Concept

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Question

Find the number of oxygen atoms in 5 moles of $H_{2} S O_{4}$ .

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Solution

1 molecule of sulphuric acid has 4 atoms of oxygen

1 mole of sulphuric acid will have 4 moles of oxygen.

5 mole of sulphuric acid will have 20 moles of oxygen.

So the total number of atoms are $4 \times 5 \times 6.023 \times 10^{23}$

$120.46 \times 10^{23}$ atoms of oxygen.

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