Find number of O-atoms in 1 moles `O_(2)`

Answer

To find the number of oxygen atoms in 1 mole of \( O_2 \), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Molecule**:
- The molecule in question is \( O_2 \), which means each molecule of \( O_2 \) contains 2 oxygen atoms.

2. **Determine the Number of Moles**:
- We are given that we have 1 mole of \( O_2 \).

3. **Calculate the Number of Oxygen Atoms**:
- Since 1 mole of \( O_2 \) contains 2 moles of oxygen atoms (because each molecule of \( O_2 \) has 2 oxygen atoms), we can express this as:
\[ \text{Number of moles of oxygen atoms} = 1 \text{ mole of } O_2 \times 2 = 2 \text{ moles of oxygen atoms} \]

4. **Use Avogadro's Number**:
- Avogadro's number (\( N_A \)) is \( 6.022 \times 10^{23} \) atoms/mole. To find the total number of oxygen atoms, we multiply the number of moles of oxygen atoms by Avogadro's number:
\[ \text{Number of oxygen atoms} = 2 \text{ moles} \times 6.022 \times 10^{23} \text{ atoms/mole} \]
\[ = 12.044 \times 10^{23} \text{ atoms} \]

5. **Final Answer**:
- Therefore, the total number of oxygen atoms in 1 mole of \( O_2 \) is \( 12.044 \times 10^{23} \) atoms.