A gas of unknown identity effuses at the rate of P \( 83.3 \mathrm{...

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A gas of unknown identity effuses at the rate of
P \( 83.3 \mathrm{mLs}^{-1} \) in an effusion apparatus in which

W carbon dioxide effuses at the rate of \( 102 \mathrm{mLs}^{-1} \). Calculate molar mass of the unknown gas.
(1) \( 6.597 \mathrm{~g} \mathrm{~mol}^{-1} \)
(2) \( 65.97 \mathrm{~g} \mathrm{~mol}^{-1} \)
(3) \( 3.650 \mathrm{~g} \mathrm{~mol}^{-1} \)
(4) \( 36.50 \mathrm{~g} \mathrm{~mol}^{-1} \)
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