50cc of oxygen is collected in an inverted gas jar over water.The atmospheric pressure is 99.4 kPa and the room tempareture is `27^(@)C.`The water level in the jar is same as the level outside . The saturation vapour pressure at `27^(@)C` is 3.4kPa. Calculate the number of moles of oxgen collected in the jar.

Explanation

To calculate the number of moles of oxygen collected in the jar, we can follow these steps:

### Step 1: Identify the Given Values
- Volume of oxygen collected, \( V = 50 \, \text{cc} = 50 \times 10^{-6} \, \text{m}^3 \)
- Atmospheric pressure, \( P_{\text{atm}} = 99.4 \, \text{kPa} = 99,400 \, \text{Pa} \)
- Saturation vapor pressure at \( 27^\circ C \), \( P_{\text{H}_2\text{O}} = 3.4 \, \text{kPa} = 3,400 \, \text{Pa} \)
- Room temperature, \( T = 27^\circ C = 300 \, \text{K} \)
- Universal gas constant, \( R = 8.314 \, \text{J/(mol K)} \)
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