Calculate the pressure exerted by `8.5 g` of ammonia `(NH_(3))` contained in a `0.5 L` vessel at `300 K`. For ammonia, `a=4.0 atm L^(2)mol^(-2)`, `b=0.036 L mol^(-1)`.

Explanation

To calculate the pressure exerted by 8.5 g of ammonia (NH₃) contained in a 0.5 L vessel at 300 K, we will use the Van der Waals equation for real gases:

\[ P + \frac{a n^2}{V^2} (V - n b) = nRT \]

Where:
- \( P \) = pressure
- \( n \) = number of moles of gas
- \( V \) = volume of the gas
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