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## Homework Statement

Calculate the volume of .250 g of helium at STP.

This seems so simple but I keep getting the wrong answers.

If someone could walk me through how to do this problem so I will know how to do them for our test. Our book doesn't give a good example.

## Homework Equations

I know gasses occupy 22.4 L at STP but other then that... I'm not sure how to set up this equation

## The Attempt at a Solution

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