how do we measure the weight & mass of a balloon filled with helium?

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My intuition leads me to believe that the balloon would have negative weight? and I have no idea how we could measure the mass

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Anonymous 0 Comments

You measure the negative weight, and compare it to the weight of air of the same volume. So you either have to do a multi-step experiment or you have to calculate the volume from the dimensions of the balloon (and then look up the density of air at your given pressure)

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