what volume of helium would be in a balloon the size of a soft drink bottle?

Depends on the size of the soft drink bottle. . . .

The worksheet didn't specify the size.
It wants us to apply strategies.
Thank you....

i'm assuming about the same volume as in the bottle

Volume of the Helium in the bottle? Isn't it the same as the volume of soft drink ( plus the gas at the top) in the bottle already?

Fill the bottle with water, empty it in a graduated cylinder and read the displacement.

the qustion is common sense. the avrage of a regular soft drink bottle is problably the for the ballon

To determine the volume of helium in a balloon the size of a soft drink bottle, you can use the water displacement method. Here's how you can do it:

1. Fill the soft drink bottle with water completely, ensuring no air pockets remain.
2. Take a graduated cylinder and fill it with water.
3. Carefully submerge the mouth of the bottle into the graduated cylinder, making sure that no water spills out.
4. Slowly turn the bottle upside down and allow the water to flow out into the graduated cylinder. Make sure the mouth of the bottle remains submerged in the water.
5. As the water flows out, it will displace an amount of water equal to the volume of the bottle.
6. Read the volume of water in the graduated cylinder once the water has stopped flowing.
7. This volume of water displaced is equivalent to the volume of helium that would fill the soft drink bottle.

By using this method, you can determine the approximate volume of helium that would be in a balloon the size of a soft drink bottle, assuming the volume of the air in the bottle is similar to the soft drink volume.