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17 February, 07:24

A balloon filled with helium has a volume of 6.3 L. What is the mass, in grams, of helium in the balloon?

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  1. 17 February, 07:48
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    The mass of helium in the balloon is 1.125 grams

    Explanation:

    Step 1: Data given

    Volume of helium = 6.3 L

    Molar mass of helium = 4.0 g/mol

    Step 2: Calculate moles helium

    1 mol gas = 22.4 L

    6.3 L = 0.28125 moles

    Step 3: Calculate mass of helium

    Mass = moles helium * molar mass helium

    Mass = 0.28125 * 4.0 g/mol

    Mass = 1.125 grams

    The mass of helium in the balloon is 1.125 grams
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