A compound is found to be 85.7% carbon and 14.3% hydrogen by mass. It is also found that 258.0 ml of the dry gas at 25.0 degrees celsius and 99.0 kPa…

A compound is found to be 85.7% carbon and 14.3% hydrogen by mass. It is also found that 258.0 ml of the dry gas at 25.0 degrees celsius and 99.0 kPa has a mass of 0.721g. Find the molecular formula of the compound.

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