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19 January, 19:11

5. 48 dm3 of a gas has a mass of 262 grams. How many moles is this? What is the Mr? What must this element be?

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  1. 19 January, 19:49
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    0,262kg/0,00548 m³ = 47,8 kg/m³

    Radon is the most dense elemental gas with a density of 9,73 kg/m³

    so it's not an elemental gas.
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