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 and Dalton's law of partial pressures. Below are the steps to solve the problem:

### Step-by-Step Solution:

1. **Calculate the number of moles of each gas:**
- For Oxygen (O₂):
\[
n_1 = \frac{8 \, \text{g}}{32 \, \text{g/mol}} = 0.25 \, \text{mol}
...