In a given diffusion apparatus, 15.0 mL of HBr gas diffused in 1.0 min. In the same apparatus and under the same conditions, 20.3 mL of an unknown gas diffused in 1.0 min. The unknown gas is a hydrocarbon. Find its molecular formula.
Added by Brenda C.
Step 1
This is known as Graham's law of diffusion. So, we can write the equation as: Rate of HBr / Rate of unknown gas = sqrt(Molar mass of unknown gas / Molar mass of HBr) Show more…
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