Calculate the pressure (in `N/m^2`)exerted by a mixture of 8 g of oxygen, 14 g of nitrogen, and 22 g of carbon dioxide in a container of 30l at a temperature of `27^@C`.

Explanation

To calculate the pressure exerted by a mixture of gases, we can use the Ideal Gas Law, which is given by the equation:

\[ PV = nRT \]

Where:
- \( P \) = pressure in N/m² (Pascals)
- \( V \) = volume in m³
- \( n \) = number of moles of gas
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