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27 April, 15:48

Gases like air are weightless?

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  1. 27 April, 16:09
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    Well they are measured by pressure
  2. 27 April, 17:54
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    You can weigh a gas in its gaseous form. Take a strong container and pump all the air out of it, then weigh it. Since there is a vacuum inside the container and a vacuum is weightless, this weight reading is the weight of the container only. Then fill it with the gas and weigh it again, it will be a little heavier.

    The difference between the two weights is the weight of the gas
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