If some moles of O2 diffuse in 18 sec and same moles of an unknown gas diffuse in 45 sec then what is the molecular weight of the unknown gas

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If some moles of O2 diffuse in 18 sec and same moles of an unknown gas diffuse in 45 sec then what is the molecular weight of the unknown gas
12
Feb
If some moles of O2 diffuse in 18 sec and same moles of an unknown gas diffuse in 45 sec then what is the molecular weight of the unknown gas If some moles of O2 diffuse in 18 sec and same moles of an unknown gas diffuse in 45 sec then what is the molecular [...]
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