To obtain a sample of gas E from a mixture of gases D and E, follow these steps:
1. Preparation: Place the mixture of gases D and E in a sealed container. Ensure the container is suitably sized to allow for the separation of gases based on their densities.
2. Vertical Tube Positioning: Insert a tube vertically through the upper part of the container. The position and sealing of the tube should be such that it facilitates the escape of the lighter gas (gas D).
3. Separation by Density Advantage: Allow the gases to separate naturally due to their density differences. Gas D, being lighter than air, will rise to the top of the container and can be vented out through the tube. This process gradually purges the lighter gas D from the container.
4. Collection of Gas E: Because gas E is heavier than air, it will settle at the bottom of the container. Once it is confirmed that most of gas D has been removed, gas E can be collected from the bottom of the container. This can be done through a port or tap at the bottom of the container.
Important Note: Ensure that these steps are conducted in a controlled environment to avoid contamination and ensure safety, considering the chemical properties and potential hazards associated with gases D and E.
