A 1.00 L evacuated flask is to be filled with `CO_(2)` gas at `300^(@)` and a pressure of 500 mm Hg by placing a piece of dry ice, `CO_(2)(s)` in the flask. What mass of dry ice should be used?

Explanation

To find the mass of dry ice (solid CO₂) needed to fill a 1.00 L flask with CO₂ gas at 300°C and a pressure of 500 mm Hg, we can follow these steps:

### Step 1: Convert Temperature to Kelvin
The temperature in Celsius needs to be converted to Kelvin using the formula:
\[ T(K) = T(°C) + 273.15 \]
Given:
\[ T = 300°C \]
\[ T(K) = 300 + 273.15 = 573.15 \, K \]
...