Find the ratio of the number of moles in 2 g of oxygen and 8 g nitrogen.

Explanation

To find the ratio of the number of moles in 2 g of oxygen and 8 g of nitrogen, we can follow these steps:

### Step 1: Calculate the number of moles of oxygen
The formula for calculating the number of moles is:
\[ \text{Number of moles} = \frac{\text{mass (g)}}{\text{molar mass (g/mol)}} \]
For oxygen (O2), the molar mass is calculated as follows:
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