Optimistic Outlook on Helium Gas in a Balloon

What is the mass of helium gas in a balloon?

1. the weight of the gas minus the balloon
2. the amount of matter inside the balloon
3. the amount of matter including the balloon
4. the mass of helium minus the mass of the balloon

Answer:

The amount of matter inside the balloon.

Helium, which has a mass of 4.00 g/mol, has a density of 0.164 g/l. The mass of helium gas in a balloon refers to the amount of matter inside the balloon.

When considering the mass of helium gas in a balloon, it is important to focus on the matter contained within the balloon itself. In this case, the mass of the helium gas is determined by the density of helium and the volume of the balloon.

Helium is a lightweight gas with a low density, making it ideal for use in balloons to provide lift. The mass of the helium gas is calculated based on the amount of matter inside the balloon, excluding the weight of the balloon itself.

Therefore, the correct answer to the question about the mass of helium gas in a balloon is the amount of matter inside the balloon. By understanding this concept, we can appreciate the science behind the phenomenon of helium-filled balloons floating in the air.