Calculate the number of atoms in :
(i) 0.25 moles atoms of carbon
(ii) 0.20 mole molecules of oxygen.

Explanation

To solve the problem, we will calculate the number of atoms in two different scenarios: (i) 0.25 moles of carbon atoms and (ii) 0.20 moles of oxygen molecules.

### Step-by-Step Solution

**(i) Calculate the number of atoms in 0.25 moles of carbon:**

1. **Understand the mole concept:**
- 1 mole of any substance contains Avogadro's number of entities (atoms, molecules, etc.), which is approximately \(6.022 \times 10^{23}\).
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