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15 August, 21:32

The rate of effusion of oxygen to an unknown gas is 1.49. what is the other gas?

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  1. 16 August, 00:55
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    Answer is: the other gas is chlorine (Cl ₂).

    rate of effusion of oxygen : rate of effusion of gas = 1.49 : 1.

    rate of effusion of oxygen = 1/√M (O ₂).

    rate of effusion of oxygen = 1/√32.

    rate of effusion of oxygen = 0.176.

    rate of effusion of gas = 1/√M (gas).

    rate of effusion of oxygen = rate of effusion of gas · 1.49.

    1/√M (gas) = 0.176 1.49

    1 / √M (gas) = 0.118.

    √M (gas) = 1 : 0.118 = 8.46.

    M (gas) = 8.46² = 71.5.
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